the angle of quadilator are in the ratio 3 is to 4 is to 6 is to 7 find all its angle
Answers
Answer:
54,72,108,126
Step-by-step explanation:
RATIO OF THE ANGLES= 3:4:6:7
SUM OF THE RATIO. = 20
SUM OF THE 4 ANGLES = 360° (ANGLE SUM PROPERTY)
FIRST ANGLE. = 3/20 ×360°= 54°
2ND ANGLE =4/20 × 360°= 72°
3RD ANGLE. = 6/20 × 360°= 108°
4TH ANGLE. = 7/20 × 360°= 126°
Solution;
Given the ratio of angles of quadrilateral, ABCD is 3:4:5:6.
Let the angles of quadrilateral ABCD be 3x,4x,5x,6x, respectively.
We know, by angle sum property, the sum of angles of a quadrilateral is 360 degree
= 3x + 4x + 5x + 6x = 360 degree
= 18x = 360 degree
Therefore, x = 20 degree
∠A=3x
=3×2
=60 degree
∠B=4x
=4×20
=80 degree
∠C=5x
=5×20
=100 degree
∠D=6x
=6×20
=120 degree
The largest angle is equal to 120 degrees. Hence, option B is correct.