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sleet_krkn [62]
3 years ago
9

Let ∠1, ∠2, ∠3, and ∠4 have the following relationships.

Mathematics
1 answer:
forsale [732]3 years ago
3 0

Answer:

90°

Step-by-step explanation:

Ok, I get it now.

Draw two perpendicular lines. Starting at any of the right angles, name them 1, 3, 2, 4 going around in order.

Now you have vertical angles 1 and 2, vertical angles 3 and 4, and angle 3 is adjacent to angles 1 and 2. this is exactly what the description states.

Since angles 3 and 4 are right angles, then all angles are right angles.

m<1 = m<2 = m<3 = m<4 = 90

m<4 + m<1 - m<2 = 90 + 90 - 90 = 90

Answer: 90°

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