Question

in a quadrilateral ABCD, angle A:angle B:angle C:angle D=3:4:5:6,then ABCD is ​

Answer 1

Hello Friend,

Here is your answer:

It is given that the figure is quadrilateral, thus we will use angle sum property

Angle A +B+C+D= 360

3x + 4x + 5x + 6x = 360

18x = 360

x = 360÷18

x= 20

Thus angles are =

A = 3x = 60

B = 4x = 80

Similarly, C = 100 & D = 120

Thus, ABCD can be a trapezium