Question

What is the length of leg s of the triangle below?

459
872
90+
45
A. 8
B. v
C. 8-12
D. 4.2
E. 1
F. 2

Answer 1

option A

Explanation:

take 45 degree as reference angle

using sin rule

sin 45 = opposite / hypotenuse

`(1)/(√(2) )` = s/
`8√(2)`

`(1)/(√(2) ) *8√(2)` = s

root 2 and root 2 gets cancel

8 = s