# What side lengths makes a triangle acute?

What type of triangle has side lengths of 4 ... What type of triangle has side lengths of 4, 7, and 9? A. acute B. right C. obtuse D. The lengths do not form a triangle. - Read more

A plane, plane figure, triangle, vertex of a triangle, vertices, classifying triangles according to the lengths of their sides, scalene triangle, equilateral triangle ... - Read more

## What side lengths makes a triangle acute? resources

### How to Find Side Lengths of Triangles | eHow

How to Find Side Lengths of Triangles. ... How to Calculate Triangle Side Lengths. Triangles are one of the most prevalent shapes in plane geometry.

### Triangles - Equilateral, Isosceles and Scalene

Acute Triangle . ... Try dragging the points around and make different triangles: ... By slicing the new triangle and moving the sliced part to the other side

### Converse of the Pythagorean Theorem | CK-12 Foundation

What would be the length of the third side to make the triangle a right triangle? What is a possible length of the third side to make the triangle acute? ...

### AnswerParty | Would a triangle with side lengths 3, 4, & 5 ...

A triangle with side lengths of ... with some regular feature that makes calculations on the triangle ... with side lengths of 11, 11, and 10 an acute ...

### Acute, Obtuse, and Right Triangles - Homeschool Math

This is a free geometry lesson for 4th grade about acute, obtuse, and right triangles ... make it into a right triangle ... Draw an acute triangle. The side lengths ...

### Acute Triangle | Acute Triangle Properties | MathCaptain.com

Test for finding an acute triangle: ... Suppose a, b and c are the lengths of a triangle and c the largest side. Then Δ ABC is an acute triangle if, a 2 + b 2 > c 2.

### Tell if the measures 18, 20 and 27 can be the side lengths ...

... 20 and 27 can be the side lengths of a triangle. If so, classify the triangle as acute ... If so, classify the triangle as acute, obtuse or right. Please ...

### Triangle - All Elementary Mathematics - Study Guide ...

Triangle. Triangle. Acute-angled triangle. ... Any side of a triangle is less than a sum of two other sides and more ... the side length of which is equal to a ...

### Triangle Classification - Cut-the-Knot

A scalene triangle is uneven in the sense that all three sides are of different lengths. The scalene muscles on each side of a ... make "uneven" angles ... a triangle ...

### Geometry: Triangles - Free Homework Math Help

Formulas and equations are used to calculate measurements such as the length of a side of a triangle, ... greater than or equal to 90° is called an acute triangle.

### 17. The sides of a triangle have lengths x, x+4 and 20. If ...

17. The sides of a triangle have lengths x, x+4 and 20. If the length of the longest side is 20, what values of x make the triangle acute? Poll responses are kept private

### Triangle - Math Wiki

The acute triangle is composed of ... Each side of a triangle is equal in length to a side of the ... one can even make each of the triangle in question's ...

### SAT Math : How to find the length of the side of an acute ...

... How to find the length of the side of an acute / obtuse triangle ... the length of one side of a triangle must be greater than the differnce and less than the sum ...

### Triangle | Types of Triangles | Math@TutorCircle.com

Acute Triangle: All angles in an ... is greater than the length of the third side. (Triangle ... to the legs of another right triangle, then the triangles are ...

### Classifying Triangles - National Security Agency

measurement and side length. ... acute triangle, and ... explaining to your students how to find one missing angle

### A.A.44: Using Trigonometry to Find a Side 1: Find the ...

an acute angle and the length of another side ... The pipe makes an angle of 48 ... Find the measure of a side of a right triangle, given an acute angle and the ...

### Triangle Facts for Kids - Equilateral, Isosceles, Scalene ...

An equilateral triangle has three sides of equal length and three equal angles. ... The longest side of a right angle triangle is called the ... Acute triangle .

### Triangle | Volume of Triangle | Math@TutorVista.com

Acute Angled Triangle; Right ... The sum of the lengths of any 2 sides of a triangle is greater than the length of the third side. In a triangle the line joining a ...

### of a Triangle - Nexus

always inside the triangle. acute triangle right ... a triangle is the length of an altitude. a.Make a ... the triangle (the length of the altitude to side ...

### Right Isosceles Triangle | Math@TutorNext.com

In the given triangle side ... For example an equilateral triangle can only be an acute triangle, ... then by the property of right isosceles triangle, Length of ...

### Right Triangle Trigonometry - Monterey Institute

Suppose you had a right triangle with an acute angle ... Start with an equilateral triangle with side lengths ... A fence is used to make a triangular ...

### Math Forum - Ask Dr. Math

Pythagorean Theorem: Why Use ... these lengths to make ... way across 5 6 Since the longest side is less than 11, we CAN make a triangle. Now we want to ...

### Best Answer:how do you find out if a triangle is acute ...

... How to find the length of the side of an acute / obtuse triangle ... The right triangle side lengths in ... and this alone makes the only possible triangle ...

### The triangle inequality, Heron's formula and the test for ...

We also have a test using side lengths to see if a triangle is acute, right or obtuse. If we have three side u, v and w and we declare that w is the long ...

### The angles of a triangle given the three sides - Math Central

I can show you a proof at least for an acute triangle. ... The triangle ABC has side lengths a, ... you just have to make sure that the angle you want is inside ...

### Tell whether the measures can be the side lengths of a ...

Question: Tell whether the measures can be the side lengths of a triangle. If so, classify the triangle as acute, obtuse, ... Therefore, a triangle is acute , ...

### Triangles - University of Houston

can be classified as an acute triangle. ... Determine which sets of three lengths will make a triangle. ... sides and the included angle of a given triangle. Side ...

### Special right triangles - Wikipedia, the free encyclopedia

A special right triangle is a right triangle with some regular feature that makes calculations on the triangle ... triangle. A "side ... triangle ABC with side length ...

### Acute Triangle | Acute Triangle Properties | Math ...

An acute triangle may have the same lengths of sides or ... interior angles are less than 90 degrees and with different side measure. Some acute triangle facts are ...

### Acute Triangle -- from Wolfram MathWorld

From the law of cosines, for a triangle with side lengths a, b, ... For an angle to be acute, cosC>0. Therefore, an acute triangle ... Practice online or make a ...

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