Question

Which triangle is a 30°60°-90° triangle?

10
O
5/3
15
o
5/3
10
05
10./3
15
O
10
5/3

Answer 1

the first option is correct

Explanation:

just took it

Answer 2

Answer: The first answer in the screenshot is correct. Sides 5, 10 and 5√3

Step-by-step explanation: In a 30°60°-90° triangle, the side opposite the 30° angle (shortest side) is half the length of the hypotenuse. So you have to choose one with 5 & 10. Use the Pythagorean theorem to calculate the remaining side a² + b² = c²

5² + b² = 10², so b² = 100-25 √b²=√75 so √(25)(3)

b= 5√3