A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 with the ground. How high on the wall does the ladder reach?

A ladder 20 m long is leaning against a vertical wall. It makes an ang

1.	A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 with the ground. How high on the wall does the ladder reach?
A.	10 m
B.	17.32 m
C.	34.64 m
D.	30 m
Answer» B. 17.32 m

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A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 with the ground. How high on the wall does the ladder reach?

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