in quadrilateral abcd , angle A=57 degrees , angle B=65 degrees and angle c=118 degrees What is the measure of an exterior angle

Question

lukranit [14]

4 years ago

12

in quadrilateral abcd , angle A=57 degrees , angle B=65 degrees and angle c=118 degrees What is the measure of an exterior angle

at D

Mathematics

2 answers:

OlgaM077 [116] · Answer 1 · 2021-12-09T11:47:21+03:00

The total measure of the interior angles of a quadrilateral is 360 degrees
you are given 57, 65, 118
That is 240
to solve for the last angle
360-240
120
The exterior angle of a D would be the number that you add that will make it 180 degrees.
meaning 180-120 is
The exterior angle of angle D is 60 degrees.

Hope this helps

Ivanshal [37] · Answer 2 · 2021-12-09T13:53:46+03:00

Ivanshal [37]4 years ago

5 0

Answer:

60 degrees

Step-by-step explanation: