Question

Find the area of the triangle whose two sides are 11 cm and 15 cmAnd the perimeter is 32

Answer 1

Answer:

20√2 cm^2

Step-by-step explanation:

given

perimeter p=32cm

i. e a+b+c=32cm

given two sides are 11cm and 15cm then third side will be 6cm.

s=p/2

s=32/2=16

formula for area a=√s(s-a)(s-b)(s-c)

a=√16(16-11)(16-15)(16-6)

a=√16×5×1×10

a=√800

a=√400×2

a=20√2cm^2

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