Question

If X = 10 cm and Y = 24 cm, what is the length of Z?


A. 23 cm

B. 25 cm

C. 29 cm

D. 26 cm

Answer 1

in what?

Answer 2

triangle

Answer 3

What kind of triangle? Is there a picture? All those choices are valid for the 3rd side of a triangle.

Answer 4

Good.

Answer 5

Right triangle. So, using pythagorean theorem, you have:
z^2 = x^2 + y^2
=> z^2 = 100 + 576
=> z^2 = 676
=> z = SQRT(676)
=> z = 26 cm

Answer 6

thanks