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06-02-2020
Mathematics

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If the leg of a 45-45-90 triangle is 20in long, what is the perimeter of the triangle

Respuesta :

06-02-2020

Yo sup??

Lenght of two side will be equal to 20 in as its an isoceles triangle.

The third side will be

x^2=b^2+h^2 (by pythagoreas theorem)

=9^2+9^2

x=9√2 in

Therefore the perimeter is = 9+9+9√2

=9√2(√2+1) in

Hope this helps.

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