find the area of an equilateral triangle whose perimeter is 60 CM
jsdcorreo:
173.21cm², http://triancal.esy.es/?l=4&p=60
Answers
Answered by
19
Perimeter of an equilateral triangle=3×side
=> side = 20
Area of an equilateral triangle
=[ root (3) ×side^2] ÷ 4
=[Root 3 × 20 ×20] ÷4
=100×root3 cm^2
Hope it helps
=> side = 20
Area of an equilateral triangle
=[ root (3) ×side^2] ÷ 4
=[Root 3 × 20 ×20] ÷4
=100×root3 cm^2
Hope it helps
Answered by
24
Hey!
Perimeter of an equilateral triangle = 60 cm
Side of an equilateral triangle = 60/3 = 20cm
Area of equilateral triangle = √3 / 4 x (side)^2
= √3 / 4 x 20 x 20
= 100√3
= 100 x 1.732
= 173.2 cm^2
Perimeter of an equilateral triangle = 60 cm
Side of an equilateral triangle = 60/3 = 20cm
Area of equilateral triangle = √3 / 4 x (side)^2
= √3 / 4 x 20 x 20
= 100√3
= 100 x 1.732
= 173.2 cm^2
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