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Find the area of an equilateral triangle whose perimeter is the same as that of a square whose area is 81 sq. cm
 one year ago
 one year ago
Find the area of an equilateral triangle whose perimeter is the same as that of a square whose area is 81 sq. cm
 one year ago
 one year ago

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sritamaBest ResponseYou've already chosen the best response.0
can you find the perimeter of the square ?
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
Use this formula to find the area of equal triangle
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
If the area of the square is 81, then a side of the square is 9. The perimeter of the square is 4*9 = 36. The equilateral triangle would have side length of 12. dw:1347692722838:dw The area of the equilateral triangle is 1/2 b times height. The height is found by using the 306090 theorem. You can also use the specialty theorem for the area of an equilateral triangle. That is the square of a side times the square root of 3 all divided by 4.
 one year ago

SilverFox18Best ResponseYou've already chosen the best response.0
Thank you so much. :D
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
We're all glad to help.
 one year ago
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