A painter leans a 12-foot ladder against a wall. The angle of elevation of the ladder is 55.
Answer:
9.83cm
Step-by-step explanation:
Since we are not asked what to look for. We can find the height of the wall.
Let the height of the wall be H
Given
Length of the ladder l = 12fot
Angle of elevation = 55degrees
Required Height of wall H
Using the SOH CAH TOA identity
SIn theta = opp/hyp
Sin 55 = H/12
H – 12sin55
H = 12(0.8192)
H = 9.83cm
Hence the height of the ladder is 9.83cm
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