Question

Find the area of a triangle two sides of which are 18cm and 20cm and the perimeter is 50cm.

Answer 1

Step-by-step explanation:

area of a triangle =1/2×base × height

here,

base=18cm

height =20cm

substitute,

1/2×18×20

=9×20

=180

perimeter=a+b+c

=18+50

=68