Question

What is the value of h?

h = 20
h = 35
h = 55
h = 70

Answer 1

Hey dear!

Here is yr answer.....


2h+2h-40 = 180

4h = 180+40

4h = 220

h = 220/4

h = 55


Hope it hlpz...

Answer 2

See attachment

Find ∠ABC:

Adjacent angles on a straight line sum up to 180º

∠ABC = 180 - 2h

Find ∠ACB:

Adjacent angles on a straight line sum up to 180º

∠ACB = 180 - 2h

Solve h:

Sum of all angles in a triangle is 180º

40 + (180 - 2h) + (180 - 2h) = 180

40 + 180 - 2h + 180 - 2h = 180

400 - 4h = 180

4h = 400 - 180

4h = 220

h = 55

Answer: h = 55