Question

find area of triangle which has two sides is 8 cm and one side is 11 cm and perimeter is 32cm plz answer tomorrow is my online exam by heron's formula class 9

Answer 1

Answer:

8$\sqrt$30cm

Step-by-step explanation:

Perimeter = 32

a+b+c=32

8+11+c=32

19+c=32

c=32-19

c=13cm

Hope this help

Answer 2

Ans

8× square root (30)

Step-by-step explanation:

A = square root(s×s-a×s-b×s-c)

=square root(16×8×15)

=8square root(30)

Third side=perimeter -(8+11)

=13cm

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