Question

The area of an equilateral triangle, whose sides are 20 cm ,12 cm and 16 cm is
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Answer 1

Answer:

your answer will be 86 cm²

Step-by-step explanation:

Using heron's formula

S=a+b+c/2

=> S=20+12+16/2cm

=>S=48/2 cm

=>S= 24vm

area of an equilateral triangle is √s(s-a)(s-b)(s-c) cm²

=√24(24-20)(24-12)(24-16) cm²

=√24×4×12×8cm²

=√6×4×4×6×2×4×2cm²

=6×4×2×2cm²

==86 cm²

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Answer 2

Answer:

your answer will be 86 cm²

I hope it's help you