Which of the following groups of angels form a quadrilateral? a 50°,70°,110°,70° b 90°,120°,60°,90° c 120°,80°,90°,40° d 90°,140°,60°,90°
Answers
Answered by
1
Answer:
square root of √644.809
Answered by
3
Answer:
B
Step-by-step explanation:
As we know, The sum of four angles of a quadrilateral is 360 °
Let us check which sums up to 360°.
a) = 50°,70°,110°,70°.
The sum of these are 50°+70°+110°+70
Therefore, we get 300.
So a is not a Quadrilateral.
b) = 90°,120°,60°,90°
The sum of these are 90°+120°+60°+90°
Therefore, we get 360.
So b is a Quadrilateral.
c) = 20°,80°,90°,40°
The sum of these are 20°+80°+90°+40°
Therefore, we get 230.
So c is not a Quadrilateral.
d) = 90°,140°,60°,90°
The sum of these are 90°,140°,60°,90°
Therefore, we get 380.
So d is not a Quadrilateral.
The only Quadrilateral among a, b, c and d is b
Hope it helps you!!!
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