Question

the perimeter of an equilateral triangle is 45cm then find its area​

Answer 1

In equilateral triangle all side are equal so all sides are 6 and you find out using herons formula

Answer 2

Answer:LET THE SIDE OF TRIANGLE BE x

then, side+side+side=perimeter

x+x+x=45

3x=45

x=45/3

x=15

so,side of the triangle is 15 cm

area=by applying formula

area=√3÷4×side²

area=97.43cm²

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Step-by-step explanation: