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a) What is the size of angle ABC?
b) Use your answer to part a) to work out
the size of reflex angle CBD.
Give your answers to the nearest degree.
60 70
90
50
150 140 130 120 110 100
A-
10 20 30
30 40
B
100 110 120 130 140 150
80 70 60 50 40 30
mga pangungg
·D

Sagot :

The measure of the angle ∠ABC is 110° and the measure of the reflex angle ∠CBD is 70°.

What is an angle?

Angle is the space between the line or the surface that meets.  And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.

Linear angle - If the total of two angles is 180 degrees, they are said to be linear angles.

The measure of the angle ABC will be

∠ABC = 110°

The angle ∠ABC and ∠CBD are the linear angles. Then we have

∠ABC + ∠CBD = 180°

   110° + ∠CBD = 180°

             ∠CBD = 70°

More about the angled link is given below.

https://brainly.com/question/15767203

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