Chapter 11.CT, Problem 7CT

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6th Edition

Daniel C. Alexander + 1 other

ISBN: 9781285195698

Textbook Problem

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In the drawing provided, find the value of *a* to the nearest whole number._________

To determine

**To find:**

The value of *a* to the nearest whole number.

Explanation

**Procedure used:**

In a right triangle, the sine ratio for an acute angle is the ratio

**Given**

The diagram as below

**Calculation:**

From the diagram, hypotenuse = 20 *m*, opposite side = *a *and the angle is 43^{0}.

Using the calculator, in the degree mode on entering 43 sin, we get the nearest value of sin43^{0}is 0.6820^{ }

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