A firefighter places a 29 feet ladder, so that the base of the ladder is 21 feet from the wall. What is the height at which the top of the ladder touches the wall?
Answers
Answered by
3
Given:-
the height of ladder 29
the base of ladder 21
According to Pythagoras theorem
hypotenuse² = base² + altitude²
ie; 29²= 21² + x²
= 841 = 441 +x²
=x² = 841 - 441
= x² = 400
= x = 20
so 20 is the height of the wall
please mark me as brainliest
the height of ladder 29
the base of ladder 21
According to Pythagoras theorem
hypotenuse² = base² + altitude²
ie; 29²= 21² + x²
= 841 = 441 +x²
=x² = 841 - 441
= x² = 400
= x = 20
so 20 is the height of the wall
please mark me as brainliest
Similar questions