Math, asked by S9926147283, 9 months ago

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Find the area of a triangle two sides of which are 8 cm and 11 cm and perimeter is 32
Section C​

Answers

Answered by nandini7557
0

Step-by-step explanation:

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Answered by Ultimater1602
1

Answer:

8 root 30 cm²

Step-by-step explanation:

two sides = 8cm , 11 cm

third side = 32 - (8 + 11)

= 13cm

by heron's formula :

semi-perimeter =p÷2

=16cm

area = square root of (16(16-13)(16-11)(16-8))

= square root of (16 × 3 × 5 × 8 )

= root of (2×2×2×2×3×5×2×2×2)

= 8 × root of (30)

= 8 root 30 cm²

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