Answer:
Explanation:
an isosceles triangle, 2 angles equal to 45, one is 90 degrees
in this case a=b
c^2=a^2+b^2, lets solve for a, as it doesn't matter which leg we find first due to the fact that they are equal
c^2=2a^2
10^2=2*a^2
100/2=a^2
50=a^2
a=5