three angles of a quadrilateral measure 110°, 90° degrees and 60°. find the measure of fourth angle?
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Answered by
2
Answer:
100 degree
Add the three angles and subtract the sum from 360 degree (angle sum property of quadrilateral)
Answered by
2
Answer:
fourth angle is 100°
Step-by-step explanation:
three angles of a quadrilateral measure 110°, 90° degrees and 60°. find the measure of fourth angle?
let,the fourth angle be"x°"
sum of all angles of quadrilateral =360°
=>110°+90°+60°+x°=360
=>260°+x°=360°
=>x°=360°-260°
=>x°=100°
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