Question

Side of triangle 22cm,20cm,18cm.find area

Answer 1

sides of triangle are
A=22cm,B=20cm,C=18cm
by heroine formula
S=A+B+C/2
S=22+20+18/2
S=60/2
S=30

area of triangle
=underoot S(S-A)(S-B)(S-C)
=underoot 30(30-22)(30-20)(30-18)
=underoot 30×8×10×12
=underoot 28800
=169.70 cm^2