Question

a ladder 25m long reaches a window of a building 20m above the ground. Find the distance of the foot of the ladder from the beginning​

Answer 1

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Answer 2

Answer:

at first using right triangle therom

Step-by-step explanation:

1. ab=25cm
2. Bc=20
3. again'Ac=?
4. In given figure abc is a right triangle
5. so apply right triangle formula

(. ab)² +(bc)²,=(ac)²

25²-20²=625-400

#225=15²

so distance of leader is 15cm