Answer:
C
Step-by-step explanation:
The Pythagorean Theorem tells us that
a^2 + b^2 = c^2
a = b = s because a right angle and a 45 degree angle leaves only 45 degrees which means that both acute angles are 45 degrees
c = 2
2s^2 = 2^2 Divide by 2
s^2 = 4/2
s^2 = 2 Take the square root of both sides.
sqrt(s^2) = sqrt(2)
s = sqrt(2)
