EDGE Math 8

Complete each sentence. Choose the correct answer.

Refer to the given figure.

1.	If $l_{1} ∥ l_{2},$ $m ∠ 6 = 90 °,$ and $m ∠ 5 = m ∠ 2 = 68 °,$ then $∠ 1$ measures __________.

22^{\circ}

34^{\circ}

68^{\circ}

90^{\circ}

Answer: $22^{\circ}$

2.	If $m ∠ 5 = m ∠ 2 = 60 °,$ then lines __________ are parallel.

l_{1}

and

l_{2}

l_{1}

and

l_{5}

l_{2}

and

l_{4}

l_{3}

and

l_{4}

Answer: $l_{1}$ and $l_{2}$

3.	If $m ∠ 3 = 90 °,$ $m ∠ 1 = 38 °,$ and $m ∠ 2 = 52 °,$ then lines __________ are parallel.

l_{1}

and

l_{2}

l_{1}

and

l_{5}

l_{2}

and

l_{4}

l_{3}

and

l_{4}

Answer: $l_{1}$ and $l_{2}$

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