Question

Calculate the area as asked:
a. Area of a triangle with base length 8 m and height 3 m.
b. Area of a circle with a radius of 7 cm.

Answer 1

For a.

Here,
Base length(b)=8 m
Height(h)=3 m
Now,
Area of triangle=1/2(b*h)
=1/2(8m*3m)
=1/2*24m^2
=24/2 m^2
=12 m^2

For b.

Here,
Radius(r)=7 cm
Now,
Area of circle= pie*r^2 //please write appropriate symbols and signs as I don’t have them in my keyboard
=(22/7)*7cm^2
=(22/7)*7cm*7cm
=(22/7)*49cm^2
=22*7 cm^2
=154 cm^2