Question

find the supplementary angle of 9+ A + b degree​

Answer 1

Answer:

162°

Step-by-step explanation:

Let the angle bex, then its complementary angle will be(900−x)

and supplementary angle will be(1800−x)

now, it is given in the question that the supplementary angle of an angle is94times its complementary angle, that is

(1800−x)=(94)(900−x)

4×(1800−x)=9×(900−x)

4×(1800−x)=8100−9x

7200−4x=8100−9x

−4x+9x=8100−7200

5x=900

x=9005

∴x=180

Therefore, the supplementary angle=1800−180=1620

Hence, the required solution is 162° .

Answer 2

Answer:

171° - a - b

Step-by-step explanation:

Hey

See my explanation

In Math, two angles are said to be supplementary, when the angles add up to 180 degrees.

We know that the sum of supplementary angles is 9° + a + b

Let the unknown angles be x

Thus,

(9° + a + b) + x = 180°

X = 180° – (9° + a + b)

X = 171° - a - b

Hence, the required solution is 171° - a - b .

Hence, the unknown angle is 171° - a - b (because we dont know what a and b is we just have to subtract it from the angle A as you saw in my workout!

Hope it helped! :)