Question

if m∠T = 2x + 10 and m∠E = 3x+20, what is m∠H?

Answer 1

T + E = 180
T + H = 180
2x + 10 + 3x + 20 = 180
5x + 30 = 180
5x= 150
x= 30

so
T + H = 180
2(30) + 10 + H = 180
60 + 10 + H = 180
H + 70 = 180
H = 110

Answer 2

the angles are supplementary, which means they are equal to 180

Answer 3

so you just solve for x and then solve for h .

Answer 4

ahh. i see.. thank you :)