Question

two angles of qaudrilateral are70,110 degree .The two angles are in the ratio 4:5 .Find these angles

Answer 1

Answer:

80 degrees and 100 degrees

Step-by-step explanation:

70+110+4x+5x=360

180+9x=360

9x=180

x=180/9

x=20

4x=4*20=80

5x=5*20=100

Answer 2

Sol:sum of all the angles of quadrilateral=360

Here given 70,110 and the other two angles ratios 4:5

So.. 70+110+4x+5x=360 ( let other two angles 4x and 5x)

180+9x=360

9x=360-180

9x=180

X=20

Then 4x means 4 times X and X is 20 so 4x = 4*20=80

Hence 5x= 5*20=100