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3 years ago

Please help me circles.....

Mathematics

2 answers:

Romashka [77]3 years ago

6 0

Answer:

Step-by-step explanation:

The equation is

x×2=285-x

3x=285

x=95

GenaCL600 [577]3 years ago

6 0

Answer:

x = 75°

Step-by-step explanation:

There are many Circle Geometry Rules. We will be using the following:

<u>The angle at the centre of the circle is twice the angle at the circumference.</u>

x = the angle opposite 285 - x.

This means that 360 - (285 - x) = 2x

360 - 285 + x = 2x

75 + x = 2x

We can simplify this by taking away x from both sides.

75 = x

We can check this by substituting x into the orginal equation.

360 - (285 - x) = 2x

360 - (285 - 75) = 2 * 75

360 - 210 = 2 * 75

150 = 2*75

150 = 150

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