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A quadrilateral has interior angle measures of 65°, 75°, and 121°. What is the measure of the fourth interior angle in the quadrilateral?

A quadrilateral has interior angle measures of 65°, 75°, and 121°. What is the measure of the fourth interior angle in the quadrilateral?
asked 143k views
4 votes
A quadrilateral has interior angle measures of 65°, 75°, and 121°. What is the measure of the fourth interior angle in the quadrilateral?

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User Charles Durham
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2 Answers

4 votes
sum of quadrilateral is 360
so 360 - (65 + 75 + 121)
=360 - 261
= 99

answer: 99 is the measure of the fourth interior angle in the quadrilateral
answered
User Mikolaj Kieres
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8.8k points
6 votes
The measure of the fourth interior angle in the quadrilateral is 145

answered
User Veedrac
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