A ladder is placed against a wall of a building 20m above the ground. The foot of the ladder is 15m away from the bottom of the building. What is the length of the ladder?
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Answered by
25
(Length of the ladder)²
= (Distance between the foot of the ladder and the bottom of the building)² + (Distance of top of the ladder from bottom)²
= (15)² + (20)²
= 225+400
= 625
i.e.,
(Length of ladder)² = 625
Length of ladder = 25m
= (Distance between the foot of the ladder and the bottom of the building)² + (Distance of top of the ladder from bottom)²
= (15)² + (20)²
= 225+400
= 625
i.e.,
(Length of ladder)² = 625
Length of ladder = 25m
Answered by
3
Answer:
25m
Step-by-step explanation:
(Length of the ladder)2
= (Distance between the foot of the ladder and the bottom of the building)2 + (Distance of top of the ladder from bottom)?
= (15)2 + (20)2
= 225+400
= 625
i.e.,
(Length of ladder)? = 625 Length of ladder = 25m
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