Question

Please help me please with number 1 part a and b.

Answer 1

Answer:

a) 39^2 = x^2 + 15^2

39^2 - 15^2 = x^2

root (39^2 - 15^2) = x

x times 2 is your answer.

b) (120 x 68) / 2 = 4080