### Circle Calculator

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### Power of the Point

### Interesting Fact about Circumference and Area

### Big Circle Q

To solve this probelm, you must remember how to find the meaure of the interior angles of a regular polygon. In the case of a pentagon, the interior angles have a measure of (5-2) •180/5 = 108 °. Therefore, each inscribed angle creates an arc of 216°

Use the inscribed angle formula and the formula for the angle of a tangent and a secant to arrive at the angles

- mBDE = 72 °
- mBFC = 72 °
- mAGD = ½(144 −72) = 36 °