Question

Please help me with this problem.

Answer 1

Answer:

60

Step-by-step explanation:

$45^{2} +b^{2} =75^{2} \\2025+b^{2}=5625\\b^{2} =3600\\b=60$

Answer 2

Answer:

60 m

Step-by-step explanation:

use Pythagorean Theorem:

a = missing side

a² + 45² = 75²

a² + 2025 = 5625

a² = 3600

a = $\sqrt{3600}$

a = 60