A ladder is placed against a wall of a building 20 m above the ground.The foot of the ladder is 15m away from the bottom of the building.What is the length of the ladder?
Answers
Answered by
11
As stated in the question.. It will form a right angled triangle... With its base (15 m) and height (20m)
Then applying Pythagoras theorem
Hypotenuse ²=base²+height²
=) 15²+20²
=)225+400=652
Hypotenuse =25 cm
So the length of the ladder will be 25 cm
Then applying Pythagoras theorem
Hypotenuse ²=base²+height²
=) 15²+20²
=)225+400=652
Hypotenuse =25 cm
So the length of the ladder will be 25 cm
Answered by
1
Answer:
25
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)²
= (15)² + (20)²
= 225+400
= 625
that is
(Length of ladder)² = 625
Length of ladder = 25m
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