Question

What is the value of a?

W
b
O 5 units
4
a
с
oss units
O 6 units
3
z
O 7 units

Answer 1

the second option : 5 1/3

Explanation:

the height (h) in such a right-angled triangle is based on the 2 segments of the baseline : 3 and a

h = 4

the formula is h = sqrt(a×b)

with a and b being the baseline segments.

so,

4 = sqrt(3×a)

16 = 3×a

a = 16/3 = 5 1/3