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.
The answer is 1 and 7/8. The last answer
x=−2 is the aswer to this problem i was wrong before
Pi*r^2
=3.14*12.6/2^2
=124.63
