To find the value angle

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August 13th 2010, 12:04 AM
alanpaul

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To find the value angle

What is the value of the shaded angle in shape A?. Please find attachemet to get shade.
August 13th 2010, 12:10 AM
Prove It

Angles in a circle add up to $360^{\circ}$ .
August 13th 2010, 01:44 AM
DavidM

For B:
All angles at a point add to 360. Assuming all sides are equal, B is divided into 4 equal parts.

$\frac{360^{\circ}}{4} = 90^{\circ}$

The rest of them are similar.

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