Question

A ladder whose foot is 9 m from the front of a house reaches a window 40 m above the ground. What is the length of the ladder?​

Answer 1

Answer:

41 cm

Step-by-step explanation:

To solve this answer, we must apply Pythagoras theorem:

Pythagoras theorem: A² + B² = C²

Here:

A = 40 m

B = 9 m

C = length of ladder.

Now, applying this formula and substituting values accordingly:

(40)² + (9)² = C²

= 1600 + 81 = C²

=          1681 = C²

=        √1681 = √C

=              41 = C

Therefore, the length of the ladder is 41 cm.

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Hope it helps☺