A 20-foot ladder touches a building 16 feet up the wall. What is the measure of the angle the ladder makes with the ground (ACB)?

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A 20-foot ladder touches a building 16 feet up the wall. What is the measure of the angle the ladder makes with the ground (ACB)?

Guest May 4, 2015

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Best Answer

+130516

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We have .....

sin Θ = 16 / 20

So .. using the sine inverse, we have...

sin^-1 (16/20) = Θ = about 53.13°

CPhill May 4, 2015

4⁺⁰ Answers

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the measure is at least 85 degrees.

nicolas0122 May 4, 2015

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Thank you kind sir :)

Guest May 4, 2015

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You are very welcome.

nicolas0122 May 4, 2015

+130516

+11

Best Answer

We have .....

sin Θ = 16 / 20

So .. using the sine inverse, we have...

sin^-1 (16/20) = Θ = about 53.13°

CPhill May 4, 2015

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