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djverab [1.8K]
3 years ago
15

What is the measure of angle A ?

Mathematics
2 answers:
erastova [34]3 years ago
5 0

Answer:  88 degrees

===========================================

Explanation:

Sides AC and AB are tangents to the circle, so 90 degree angles form at points C and B.

Angle O = 92

Angle B = 90

Angle C = 90

Angle A = unknown

----------

The four interior angles of any convex quadrilateral always add to 360 degrees

(angle O) + (angle A) + (angle B) + (angle C) = 360

92 + A + 90 + 90 = 360

A + 272 = 360

A+272-272 = 360-272

A = 88

-----------

A shortcut is to subtract angle O from 180

angle A = 180 - (angle O)  = 180 - 92 = 88

we get the same answer

Bad White [126]3 years ago
3 0

Answer:25%

It's spit into fourths so yeah

Step-by-step explanation:

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