Answer:
Step-by-step explanation:
According to the question we are given with a right traingle Where base is 35 and the perpendicular is 12.
We need to find the unknown side that is the longest side (Hypotenuse) .
By using pythagoras theorem :

here,
- H represents hypotenuse
- B represents base
- P represents Perpendicular.
Putting the required values in the Pythagoras theorem we will get,,

Therefore, Unknown side of the right triangle i.e hypotenuse is 37 .