Chapter 12: Q21. (page 689)

Use the given information to find $m ∠ 2$ .
$∠ 1$ and $∠ 2$ arevertical angles, and $m ∠ 1 = 140 °$ .

Short Answer

Expert verified

The measure of angle $m ∠ 2$ is $140 °$ .

Step by step solution

Step 1. Given Information.

$m ∠ 1 = 140 °$

Step 2. Concept used.

If two angles are vertical, then their measures are equal.

Step 3. Calculation.

Since $∠ 1$ and $∠ 2$ are vertical angles.

$\begin{matrix} m ∠ 2 = m ∠ 1 \\ = 140 ° \end{matrix}$

Step 4. Conclusion.

The measure of the angle that is vertical to an angle measuring $140 °$ is $140 °$ .

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Use the given information to find $m ∠ 2$ .
$∠ 1$ and $∠ 2$ arevertical angles, and $m ∠ 1 = 140 °$ .

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Concept used.

Step 3. Calculation.

Step 4. Conclusion.

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Use the given information to find m∠2.∠1 and ∠2arevertical angles, and m∠1=140°.

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Concept used.

Step 3. Calculation.

Step 4. Conclusion.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Pure Maths

Statistics

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Study anywhere. Anytime. Across all devices.

Use the given information to find $m ∠ 2$ .
$∠ 1$ and $∠ 2$ arevertical angles, and $m ∠ 1 = 140 °$ .