Question

an angle is 4 / 5 of its supplement what is its magnitude​

Answer 1

Answer:

80

Please check the attachment for answer .

Answer 2

Answer:

Sum of supplement angles is 180°

One is 4/5 of its supplement.

Let the other be x

A\q

x + 4/5 of x = 180

=> x + 4x/5 = 180

=> ( 5x + 4x )/5 = 180

=> 9x/5 =. 180

=> 9x = 180 × 5

=> 9x = 900

=> x = 900/9 = 100

Now the angle = 4/5 of 100

= 80°

Hence the magnitude of the angle is 80° .

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