Question

In a rombus ABCD angle A=3x+20 angle C= x+30 then find the measurements of angle B​

Answer 1

$\huge{Answer~:}$

We know that rhombus is one type of parallelogram and in parallelogram opposite angles are equal.

angle A = angle C

$3x + 20 = x + 30 \\ \\ 3x - x = 30 - 20 \\ \\ 2x = 20 \\ \\ x = 10$

angle A = 3x + 20 = 50°

angle C =