Math, asked by subheadingghosh, 5 months ago

plz give the ans with full process

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Answered by Adwit1

0

Answer:

54 cm

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Plz mark it as the brainliest answer if u found it helpful

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Answered by meetkapadia0309

0

Answer:

area of equilateral triangle is√3/4 a2

√3/4 a2 = 81√3

a2 = 81*4

a = 18cm

perimeter of equilateral triangle is 3a

3*18 = 54cm

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