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Answer:

90°

Step-by-step explanation:

The sum of angle 2 and angle 3 is equal to 90° because ABC is a right triangle.

Answer:

90

Step-by-step explanation:

This is a special right triangle. Now, the angles 1 is 90 degrees that means we have another 90 degrees left. We don't even need to add to know the total of angles 2 and 3 are 90 because every triangle is 180 degrees and every right angle is 90.

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