Please give me the correct answer

Answer:
it's answer is 3.75
Step-by-step explanation:
Hypotenuse (h) = 6.25
Perpendicular (p) = 5
base (b) = ?
By using Pythagoras theorem we get
b = √ ( h² - p²)
= √( 6.25)² - 5²
= √ 14.0625
= √(3.75)²
= 3.75
Hope it will help:)❤