Question

If an angle is twice its supplement, the angle is ____ degrees. Select one: a. 60 b. 120 c. 5 d. 30

Answer 1

120


X+2x=180
3x =180
X=60

One angle 60 The other angle double of 60 (120)
60+120 = 180

Answer 2

Answer:

The angle is 120°

Step-by-step explanation:

Let the angle be x

Supplement angles : A pair of angles whose sum is 180°

So, Complement of x = 180°-x

Now we are given that an angle is twice its supplement

So, $x=2(180-x)$

$x=360-2x$

$3x=360$

$x=\frac{360}{3}$

$x=120^{\circ}$

Hence the angle is 120°