Question

two adjacent angles of a parallelogram are in the ratio 1 is to 1 find the measures of all the angles​

Answer 1

Step-by-step explanation:

ratio of adjacent angles=1:1

means adjacent angles are equal.

given that it is a parallelogram.

so opposite angles are equal.

hence, all four angles are equal.

sum of 4 angles = 360

so each angle should be 90 degrees.