Question

(2x-50)and(x+20) are a pair of complementary angle

Answer 1

Answer:

(2x - 50) and (x + 20)

Here complementary angle means sum of two angles = 90 degrees.

2x-50= x+20

2x = x+20+50

2x - x = 70 degrees

2(70)-50=(70+20)

140-50=90

90=90

Therefore the given pairs of angles forms a pair of complementary angles.

Answer 2

Answer:40

Step-by-step explanation:

(2x - 50) and (x + 20)

Here complementary angle means sum of two angles = 90 degrees.

2x-50= x+20

2x = x+20+50

2x - x = 70 degrees

1(70)-50=(70+20)

70-50=90

40=90