Book edition 6th

Author(s) Sullivan

Pages 1200 pages

ISBN 9780321795465

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Short Answer

A 22-foot extension ladder leaning against a building makes a 70° angle with the ground. How far up the building does the ladder touch?

Hence, the ladder touch the building at $7.5244$ feet.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1 Given Information

Given that a 22-foot extension ladder leaning against a building makes a 70° angle with the ground.

Step 2 Solution

Suppose the ladder touch the building at $x$ feet.

We can draw a figure as: -

In $△ A B C$ we have to find $B C = x .$

$\cos (B) = \frac{B C}{A B} B C = A B \times \cos (B) x = 22 \times \cos (70) x = 22 \times 0.342020 x = 7.5244$

Step 3 Final answer

Hence, the ladder touch the building at $7.5244$ feet.

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Precalculus Enhanced with Graphing Utilities

Answers without the blur.

Short Answer

A 22-foot extension ladder leaning against a building makes a 70° angle with the ground. How far up the building does the ladder touch?

Step by Step Solution

Step 1 Given Information

Step 2 Solution

Step 3 Final answer

Most popular questions for Math Textbooks

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Precalculus Enhanced with Graphing Utilities

Answers without the blur.

Short Answer

A 22-foot extension ladder leaning against a building makes a 70° angle with the ground. How far up the building does the ladder touch?

Step by Step Solution

Step 1 Given Information

Step 2 Solution

Step 3 Final answer

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