The angles of a quadrilateral are in the ratio 1:2:3:4. Find the measure of each angle

Let us consider that the smallest angle is 'x'.

According to the given ratio, the four angles are:

Now, for any quadrilateral, the sum of the all four angles should be equal to 360°.

So,

        x + 2x + 3x + 4x = 360°

        10x = 360°

         x = 36°.

Thus, the four angles are:

the answer is a.

135 and 80

step-by-step explanation: