Question

A triangle has an area of 20 cm2. If its base is 40% of its height, what is its height to the nearest tenth of a centimeter?

Answer 1

say the base= b
height = h
b=40% h = 0.4h
area of triangle = half of the base x height
10 = ........
complete the rest

Answer 2

Area of a triangle = (1/2)(base)(height)

20 = (1/2)(.4h)(h)
20 = .2h^2
h^2 = 100
h = 10

Answer 3

Thanks to both of you.

Answer 4

welcome.