Question

What is the value of x in this figure?

a. 10 √ 3
_____
3

b. 5 √ 2

c. 5 √ 3

d. 5

Answer 1

The lengths of sides of a 30°-60°-90° triangle have the ratio 1 : √3 : 2. Multiplying these values by 5 tells you the sides have the lengths 5 : 5√3 : 10.

The length x of the middle-length side is ...
c. 5√3