please help me on it

Answer:
36 m
Step-by-step explanation:
Pythagorean Theorem:
a² + b² = c²
27 = b
45 = c
So let's solve
a² + 27² = 45²
a² + 729 = 2025
a² = 1296
√1296 = a
= 36
units = m
36 units
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K