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Orchard Hideout. • Area of a Circle – definition. • The area of a circle is equal to the number of unit squares that can fit within the circle. You could count them or use the formula…. …area is measured in "square units" or "units 2 ". Orchard Hideout. • Area of a Circle – the formula.
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Orchard Hideout • Area of a Circle – definition • The area of a circle is equal to the number of unit squares that can fit within the circle. You could count them or use the formula… …area is measured in "square units" or "units2"
Orchard Hideout • Area of a Circle – the formula • Where does area formula come from? What?!?
Orchard Hideout • Area of a Circle – the formula • Where does area formula come from? That's pretty…
Orchard Hideout • Area of a Circle – the formula • Where does area formula come from? Hmmm… interesting
Orchard Hideout • Area of a Circle – the formula • Where does area formula come from? If we kept cutting and arranging, we would eventually end up with a rectangle…
1. If r = 12 , then A = _______ _______ 2. If d = 8 , then A = _______ _______ 3. If C = 25π , then A = _______ _______ 4. If C = 96 , then A _______ Orchard Hideout • Area of a Circle – calculating values (round to hundredths)
6. If A = 115 sq. units, then d _______ C _______ Orchard Hideout • Area of a Circle – calculating values (round to hundredths) 5. If A = 81π sq. units, then r = _______ C = _______
7. If the center of the circle is at (7, 6) and (12, 3) is a point on the circle, what is the area of the circle? Orchard Hideout • Area of a Circle – calculating values (round to hundredths)
Orchard Hideout • Area of a Circle – calculating values (round to hundredths) 8. If “circle A” has a diameter of 50 feet, what is the exact area of “circle B”?
Orchard Hideout • Area and Perimeter of Irregular Shapes Calculate the exact and approximate area and perimeter of the following irregular shapes.
Orchard Hideout • Area and Perimeter of Irregular Shapes Calculate the exact and approximate area and perimeter of the following irregular shapes.
Orchard Hideout • Area and Perimeter of Irregular Shapes Calculate the exact and approximate area and perimeter of the following irregular shape.
Orchard Hideout • Area and Perimeter of Irregular Shapes Calculate the exact and approximate area and perimeter of the following irregular shape.
Orchard Hideout • Area and Perimeter of Irregular Shapes Calculate the exact and approximate area and perimeter of the following irregular shapes.