Three of the angles of a quadrilateral are 120° 48° and 92° what is the size of the fourth angle

2 answers:

7 0

Hi there! A quadrilateral has angles that add up to 360°. So we have the measurements of the first three angles. We will look for the 4th angle by solving. Let's add the totals of the first 3 angles. 120 + 48 + 92 is 260. Now, we subtract that number from 360. 360 - 260 is 100. There. The measurement of the fourth angle is 100°.

Komok [63]3 years ago

6 0

360-120-48-92=100°

Each quadrilateral has 360° so simply deduct the angles to get your result.

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