Question

What would I do to find out the variable “h”?

Answer 1

Similar triangle

20/h = 280/(280+70)
20/h = 280/350
20/h = 4/5
cross multiply
4h = 20 x 5
4h = 100
h = 25

Answer 2

Hey there! :D

70/280= 0.25

0.25*20= 5

5+20=25

h=25

I hope this helps!
~kaikers