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Debora [2.8K]
2 years ago
15

Find the value of x for which allb A. 35 B. 145 C. 140 D. 47

Mathematics
1 answer:
Paha777 [63]2 years ago
7 0

Answer:

A. 35

Step-by-step explanation:

a || b .....(given)

line c is their transversal.

-> x° + (3x + 40)° = 180° (Interior angles on the same side of transversal)

-> (3x + 40 + x)° = 180°

-> (4x + 40)° = 180°

-> 4x + 40 = 180

-> 4x = 180 - 40

-> 4x = 140

-> x = 140/4

-> x = 35

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