Question

Find the measure of missing angle of quadrilateral.
50", 160°, 90°
b) 125, 145, 75°
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Answer 1

Answer:

a)60 is the answer

Step-by-step explanation:

50+160+90=300

360-300=60

Answer 2

Let the unknown angle be x

a) According to the angle sum property of a quadrilateral,

50°+160°+90°+x = 360°

x = 360°-300°

x = 60°

b) Similarly,

125°+145°+75°+x = 360°

x = 360°-345°

x = 15°