Question

perimeter of an isosceles

triangle is 150 m. If its unequal side is 70 m, find the area of the triangle
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Answer 1

Step-by-step explanation:

LET THE TRIANGLE BE ABC

ND LET THE UNEQUAL SIDE BE AC=70M

PERIMETER = AB +BC+AC=150

=AB+BC+70M=150

= 2AB=150-70{other2 sides r eq.}

PERIMERER=2AB=80

=AB=80/2

=AB=40

THERE4 OTHER 2 SIDES R 40M ND 40M

HENCE AREA = 1/2 B×H

1/2 ×40×40

=800m^2