Me with this geometry problem, i'd really appreciate it : )

Hello from MrBillDoesMath!

x = 31

Discussion:

angle A + angle C + angle B = 180              (180 degrees in a triangle)

angle A + 57           +  61        = 180 =>         (substitution)

angle A + 118 = 180 =>

angle A = 180 -118 = 62

By the congruence statement, angle A = angle D = 2x so

62 = 2x =>

x = 31

Thank you,

MrB

the solution is h=10 because you add 9 to each side of the equation.

b. astronomers