Parallel Lines and Angles Worksheet

**Page 3**

21.

A reflex angle is an angle that lies between

a. | 180° and 360° | ||

b. | 180° and 270° | ||

c. | 0° and 90° | ||

d. | 90° and 180° |

Correct answer : (1)

22.

In the figure, $\angle $AOB and $\angle $BOC are

a. | concurrent angles | ||

b. | adjacent angles | ||

c. | congruent angles | ||

d. | none of the above |

[From Definition.]

[Step 1.]

Correct answer : (2)

23.

In the figure, $\angle $1 and $\angle $2 are

a. | Vertically opposite angles | ||

b. | Alternate angles | ||

c. | Adjacent angles | ||

d. | Corresponding angles |

Correct answer : (3)

24.

$\angle $JKM and $\angle $LKM are

a. | supplementary angles | ||

b. | congruent angles | ||

c. | complementary angles | ||

d. | concurrent angles |

[

Correct answer : (1)

25.

15° is equal to

a. | $\frac{22}{7}$ radians | ||

b. | 15 gradians | ||

c. | 15 radians | ||

d. | $\frac{\pi}{\mathrm{12}}$ radians |

[Write the relation.]

15

[Divide by 12 on both sides.]

Correct answer : (4)

26.

Line T is a transversal for lines L_{1} and L_{2}. $\angle $4 and $\angle $8 are

a. | complementary. | ||

b. | supplementary. | ||

c. | right angles | ||

d. | congruent. |

[Corresponding Angles Postulate.]

[Step 1.]

Correct answer : (4)

27.

Two parallel lines L_{1} and L_{2} are cut by a transversal T. Use the figure to find how $\angle $1 and $\angle $4 are related.

a. | corresponding angles | ||

b. | supplementary | ||

c. | alternate interior angles | ||

d. | vertically opposite angles |

Correct answer : (4)

28.

Two parallel lines L_{1} and L_{2} are cut by a transversal T. Use the figure to identify the special name for the angle pair $\angle $2 and $\angle $6.

a. | supplementary | ||

b. | corresponding angles | ||

c. | alternate interior angles | ||

d. | none of the above |

Correct answer : (2)

29.

Line T is a transversal for the parallel lines L_{1} and L_{2}. $\angle $4 and $\angle $6 are

a. | supplementary | ||

b. | corresponding angles | ||

c. | same-side interior angles | ||

d. | congruent |

Correct answer : (3)

30.

Which of the following pairs of angles are not equal?

a. | 1, 3 | ||

b. | 9, 11 | ||

c. | 8, 6 | ||

d. | 5, 6 |

8, 6 are vertical angles. So,

5, 7 are vertical angles. So,

Hence

Correct answer : (4)