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professor190 [17]
2 years ago
14

Find the unknown angle​

Mathematics
1 answer:
Mariana [72]2 years ago
7 0

Answer:

77 degrees

Step-by-step explanation:

Right triangles always add up to 180 degrees. We know that one angle is 23 degrees, angle A is missing, and the last angle is a right angle which is equal to 90 degrees. Knowing what we know, we must subtract the two known angles from 180 to get angle A.

180 - 90 = 90

90 - 23 = 77

Angle A is equal to 77 degrees.

hope this helps!! :]

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igomit [66]

The reasonable estimate for the length of side DE is 3 units

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Using the similarity theorem of a triangle, this is expressed as:

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For each month of a year, Selena saved
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#SPJ1

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