Question

A triangular picture has the area 84 sq cm. What is the altitude of
the picture if its base is 21cm in length?

Answer 1

area of a triangle is half *base*height
84=1/2*21*h
84*2/21
solve it and your answer will come

Answer 2

area of triangle = 1/2× base× height

84 = 1/2 × 21 × h

h = 8cm