Step-5

Title: Parallel Lines & Transversals

Grade: 10-a Lesson: S1-L5

Explanation:

Step Type Explanation Answer

1

Problem

In a given below figure LM ∥ PQ. Find the value of a.
5

5a

2

Step

Given

\$\angle LMN = 44\$ , \$\angle QPO = 56\$

3

Step

Alternate interior angle LM ∥ RS

\$\angle LMN = \angle SNM\$

4

Step

Alternate interior angle LM ∥ RS

w = 44°

5

Step

Given

\$\angle MNO = 98°\$

6

Step

Now substitute the value

w + x = 98°

7

Step

After simplication

x = 98 - 44

8

Step

After simplication

x = 54°

9

Step

Alternate interior angle RS ∥ UV

\$\angle NOU \$ = \$\angle SNO\$

10

Step

Alternate interior angle RS ∥ UV

y = x = 54°

11

Step

Alternate interior angle UV ∥ PQ

\$\angle UOP \$ = \$\angle QPO\$

12

Step

Alternate interior angle UV ∥ PQ

z = 56°

13

Step

Alternate interior angle UV ∥ PQ

a = y + z

14

Step

Now substitute the value

a = 54 + 56

15

Step

After simplication

a = 110°

16

Answer

The a value is 110°


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