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4 years ago

Find the value of x that makes A || B.

Mathematics

2 answers:

OleMash [197]4 years ago

5 0

Answer:

x = 90

Step-by-step explanation:

∠1 = ∠4 ( corresponding angles are congruent ), thus

3x - 160 = x + 20 ( subtract x from both sides )

2x - 160 = 20 ( add 160 to both sides )

2x = 180 ( divide both sides by 2 )

x = 90

Snowcat [4.5K]4 years ago

3 0

Answer:

x = 90.

Step-by-step explanation:

< 1 and < 4 are corresponding angles and are congruent if line a is parallel to line b. So:

3x - 160 = x + 20

2x = 180

x = 90.

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