Question

If two supplementary angles are in the ratio 4 : 5, then the angles are:

a) 4xo

, 5yo

b) 125o

, 55o

c) 80o

, 100o

d) 150o

, 30o​

Answer 1

Answer:

your answer is C ) 80° , 100

Answer 2

Answer:

Answer. hence the angles are 40 degree and 50 degree respectively

a.Let the angles be 4x and 5x

Angles are supplementary

∴4x+5x=180

∘

⇒9x=180

∘

⇒x=20

∘

So the angles are

4×20

∘

=80

∘

5×20

∘

=100

∘

b.Let the angles be 4x and 5x

Angles are supplementary

∴4x+5x=180

∘

⇒9x=180

∘

⇒x=20

∘

So the angles are

4×20

∘

=80

∘

5×20

∘

=100

∘