Question

In triangle ABC is apoint on BC and O is mid point of line AD If area of triangle OBC =20 cm then area of triangle ABC will be

Answer 1

Answer:

40

Step-by-step explanation:

in triangle OBC....

area=1/2× base× height

=1/2×BC×OD=20

IN TRIANGLE ABC....

AREA=1/2×BC×AD

=1/2×BC×2×OD( O IS MID POINT SO 2OD=2OA=AD)

=1/2×BC×OD×2

=20×2

=40 sq.units