12. The size of the angles of a quadrilateral are in the ratio
1:2:3; 3. Calculate the size of each angle.
Answers
Answered by
0
Answer:
let the measure of angle be x
1x + 2× +3× +3× = 360
9× = 360
× = 40
1× = 40
2× = 80
3× = 120
4× = 120
Answered by
3
Answer:
,angle A=x
=40°
, angle B=2x=2×40°
=80°
, angle C=3x=3×40°
=120°
, angle D=3x
=120°
Step-by-step explanation:
Let's
,angle A=x
, angle B=2x
, angle C=3x
, angle D=3x
Sum of all interior angle of quadrilateral=360°
x+2x+3x+3x=360°
9x=360°
x=360°/9
x=40°
,angle A=x
=40°
, angle B=2x=2×40°
=80°
, angle C=3x=3×40°
=120°
, angle D=3x
=120°
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