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Which of the following are true statemetns about a 30-60-90 triangle?

I think it is a and b but I'm not sure

Which of the following are true statemetns about a 30-60-90 triangle? I think it is-example-1

2 Answers

3 votes

Answer:

Use the hyper link

Explanation:

I took a picture on the unit.

Which of the following are true statemetns about a 30-60-90 triangle? I think it is-example-1
User Rescobar
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5.6k points
6 votes

Answer:

A.The longer leg is √3 times as long as the shorter

B. The hypotenuse is twice as long as the shorter leg

Explanation:

The 30-60-90 is a special triangle with two acute angles 30° and 60°

The side across from the 30°= shorter leg

The side across from 60°=longer leg

The side across from 90°=hypotenuse

If we take the shorter side to be x and hypotenuse to be 2x then the longer leg will be;

Apply Pythagorean relationship

a² + b² =c²

c²-a²=b² where-----------c=2x and a=x

(2x)² - x² = b²

4x² - x² =b²

3x² = b²

√3x²=b

x√3 =b

Hence longer leg is √3 times longer than the shorter leg which is x and the hypothenuse 2x is twice the shorter leg which is x

User Opentuned
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5.5k points