CLASS- 9 HERON'S FORMULA1) find the area of an equilateral trimgle whose perimeter is 60cm
1 answer:
Answer:
see below
Step-by-step explanation:
if its perimeter is 60 each side is 60/3 = 20.
Its height will be 10√3 so area is 20 * 10√3 / 2 = 100√3
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