Question

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

10
O
5
573
15
O 5
5
5/5
10
O
5
10/3
15
O
10
5/3

Answer 1

A

Explanation:

The side lengths of a 30°-60°-90° triangle have the ratios, shortest to longest, ...

1 : √3 : 2

When we multiply these ratio values by 5, we find side lengths of ...

5 : 5√3 : 10

will form a 30°-60°-90° triangle.

These values match the lengths shown in the attachment. (Choice A)