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Date:___________________

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MEAP Preparation - Grade 7 Mathematics
4.19 Angles Made by a Transversal With Two Parallel Lines - II


Example : In the above figure l//m; n is the transversal. If 1 = 110, find the other angles ?

Solution : Given that 1 = 110.
1 =5, since 1 and 5 are corresponding angles.
Therefore 5 = 110
5 = 3, since they are interior alternate angles.
Therefore 3 = 110.
3 = 7, since they are corresponding angles.
Therefore 7 = 110.
4 + 5 = 180, since 4 and 5 are the interior angles those are on the same side of the transversal.
But 5 = 110
Therefore 4 = 180 - 110 = 70.
4 = 6, since they are interior alternate angles.
Therefore 6 = 70.
2 = 6, since they are corresponding angles.
Therefore 2 = 70.
Therefore 1 = 110 , 2 = 70, 3 = 110, 4 = 70, 5 = 110, 6 =70, 7 = 110 and 8 = 70.


Directions:Answer the following questions. Also draw parallel lines with a transversal and show all the angles formed by them and write all the sets of congruent and supplementary angles.>

Name: ___________________

Date:___________________

MEAP Preparation - Grade 7 Mathematics
4.19 Angles Made by a Transversal With Two Parallel Lines - II

Q 1: If angle 2 = 60 degrees, find angle 5.

130 degrees
80 degrees
120 degrees

Q 2: If angle 8 = 120 degrees, find angle 3.

120 degrees
130 degrees
100 degrees

Q 3: What is the sum of the measures of angle 3 and angle 6?

180 degrees
130 degrees
90 degrees

Q 4: What is the sum of the measures of angle 2 and angle 7?

150 degrees
180 degrees
120 degrees

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Question 6: This question is available to subscribers only!


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