Math, asked by pranjal3828, 1 year ago

find the area of equilateral triangle whose one side is 10 m

Answers

Answered by Anonymous
2
HEY MATE______>

A ≈ 43.2m²

Side = A and M = 10


I THINK IT HELPED YOU ^
Attachments:

divprsw16: Side=10m
divprsw16: Side=10m so area=√3a^2/4 Here, area=√3×10^2/4
divprsw16: Area=√3×100/4 =√3×25=42.75 (approx)
divprsw16: Yeah it's the same, I also took the value of √3 n got a solution!!
Answered by TooFree
7

Length = 10 m


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Find using Heron's formula:

Perimeter = 10 + 10 + 10 = 30 m

Semi Perimeter = 30 ÷ 2 = 15 m


Area = √p(p-a)(p-b)(p-c)

Area = √15(15-10)(15-10)(15-10) = √1875 = 25√3 m²


Answer: Area = 25√3 m²


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Find using formula:

Area of a equilateral triangle = (√3)/4 side²

Area of a equilateral triangle = (√3)/4 (10)² = 25√3 m²


Answer: Area = 25√3 m²

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