Question

Q.16 Find the area of equilateral triangle whose perimeter is 18 m. (using
Heron's formula)
SECTION-II - CASE - STUDY (16 MARKS)
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Answer 1

Answer:

the answer is = 16 kk

Answer 2

Answer:

Perimeter=18cm

semiperimeter=9cm

let each side be x

3x=18

x=18/3=6cm

Area=√s*(s-a)*(s-b)*(s-c)

=√9*3*3*3

=√3*3*3*3*3

=3*3√3

=9√3

Hope you find my answer helpful

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