Question

3 angles of a quadrilateral are in the ratio 4:6:3.If 4th angle is 100°,Find the other 3 angle...

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Answer 1

Answer:

let the three side of the quadrilateral be 4x,6xand 3x

We know that the sum of four angle of a quadrilateral is 360°

as the fourth angle is 100° then the sum of other three angle will be 260°

ATQ

4x+6x+3x=260°

13x=260°

x=20°

hence the first angle =4×20=80°

second angle=6×20=120°

third angle=3×20=60°

Step-by-step explanation:

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Answer 2

Answer:

Sum of all the angles of quadrilateral= 360°

1st angle= 4X

2nd angle=6X

3rd angle=3X

4th angle=100°

4X+6X+3X+100°=360°

13X= 360-100

13X=260°

X= 260÷13

X= 20°

1st angle=4×20

=80°

2nd angle=6×20

=120°

3rd angle=3×20

=60°