Answer:
Explanation:
Formula
c^2 = a^2 + b^2
Givens
Hypotenuse (c) = 45
a = 40
b = ?
Solution
45^2 = 40^2 + b^2
2025 = 1600 + b^2 Subtract 1600 from both sides.
2025-1600 = 1600-1600 + b^2 Combine
425 = b^2 Take the square root of both sides.
√425 = √b^2
b = 20.62
Answer
The third side is 20.62 cm