Question

Find the measure of each angle of quadrilateral. A(2x),B(3x+20), C(3x20),D(2x+20)

Answer 1

Answer:

1. total of all angles of quadrilateral is 360 degrees
2. so , 2x + (3x+20) + (3x + 20) + (2x+ 20) = 360

10x + 60 = 360

10x = 300

x = 30

3. therefore, first angle =2x = 2 × 30 = 60 degrees

second angle= 3x+20=110 degrees

third angle = 3x + 20 = 110degrees

fourth angle = 2x + 20 = 80 degrees