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Scilla [17]
3 years ago
15

Please help me my little sister and i don’t understand!!

Mathematics
1 answer:
nignag [31]3 years ago
6 0

Hi!

These two angles are alternate interior angles, so they are congruent. Thus:

∠A = ∠B

6x + 5 = 4x + 45

Solve for x:

2x + 5 = 45

2x = 40

x = 20

Solve for ∠A by substituting in this value:

∠A = 6(20) + 5 = 125°

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