Question

. Ifone angle of a pa The ratio of two adjacent angles of a parallelogram is 4:5. Find the measure of each of its angles. The ratio of two adjacent sides of a parallelogram is 3:5 and its perimeter is 240 cm. Find the sides​

Answer 1

Answer:Let ABCD be a parallelogram.Given that, ∠A:∠B=4:5Sum of the ratios =4+5=9But, ∠A+∠B=180 o (Adjacent angles of the parallelogram, ABCD)∴∠A= 4/9×180°= 80°∠B= 5/9×180°=100°So ∠C=∠A=80 ∠D=∠B=100 ∴(Opposite angles of a parallelogram are equal). please make me brainliest