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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The line touching a small part of the circle is called the... |
Tangent |
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The line cutting off a small part of the circle is called the... |
Chord |
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The part of a circle from the middle to the edge is called the... |
Radius |
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The line going through the centre of the circle is called the... |
Diameter |
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The part of the circle inside the Chord is called the... |
Segment |
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The part of the circle cut out like a pizza is called the... |
Sector |
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The edge of a sector of a circle is called the... |
Arc |
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The entire outside of the circle is called the... |
Circumference |
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Pi= |
3.14 |
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The formula for finding the area of a circle is... |
π×r² |
A (=) pple P ies R 2 delicious |
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The formula for finding the circumference of a circle is... |
π×d |
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Area of a sector: |
Angle/360×πr²=... |
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Arc length and Perimeter of sector: |
Arc length= angle/360×π×diameter= |
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Perimeter of Sector: |
Arc length+radius²=... |
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Area of a half-circle: |
π×r²÷2 |
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