Question

Which is the best approximation of the perimeter of a right isosceles triangle if it's hypotenuse is 12 units long

Answer 1

ok so isocileese
that means that the 2 legs are eual

a^2+b^2=c^2
a=b
c=12
2a^2=12^2
2a^2=144
divide 2
a^2=72
a=6√2

perimiter=a+b+c
a=b
P=6√2+6√2+12
P=12√2+12
P=aprox 28.97 units