The sides of a triangle are 8cm 19 cm and 16cm respectively area of this triangle is
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Answer:
Let third side be x
Perimeter =8+11+x
19+x=32
x=13
S=
2
32
=16
Heron's formula
A=
S(S−A)(S−B)(S−C)
=
16(16−8)(16−11)(16−13)
=
16×8×5×3
=8
30
2cm
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