Question

Find the height of a triangle whose base is 80cm and area is 0.08sq.m.

Answer 1

base = 80 cm = 0.8 m
area = 0.08 m$^{2}$  

area of a triangle =  1/2 base x height
0.08 = 1/2 x 0.8 x h
h = $\frac{0.08}{0.4}$

h= 0.2 m =  20 cm 

Answer 2

area of triangle = 1/2 b x h 
base                 = 80 cm
area                  = 0.08 m = 8 cm
height               = ?
 area of triangle = 1/2 x 80 x h = 8 
                          40 x h = 8
                      h = 8÷40
                         0.2 cm
therefore height = 0.2 cm = 0.002 m