Question

find the value of z.

A. 2√2

B. 3

C. 2

D. 6√2

Answer 1

first find Y
 using the Pythagorean theorem
y = sqrt (3^2 -1^2)
y = sqrt(8)
y = 2sqrt(2)

now you can use Y to find Z

Z= sqrt( y^2 + 8^2)

z = 6sqrt(2)

the answer is D