Question

If the perimeter of an equilateral triangle is 36 cm, calculate it's area and height.​

Answer 1

Answer:

perimeter = 3a where a is the side of equilateral triangle.

36cm = 3a

side =12 cm

area =√3÷4 a2 = √3÷4×144.

√336cm2

area of triangle = 1÷2 base × height .

36√3= 6cm× height .

height= 36√3÷6= 6√3= 1.732× 6.

10.4 cm

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Answer 2

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