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Name: _____________________________________________ Block:________Areas of Polygons
Perimeter, Circumference, and AreaWarm-Up:Find the length of the hypotenuse in each right triangle. If the length is not a whole number, give the answer in simplest radical form.
Objectives: 1.
2.
Class Notes:
Perimeter
Area
Perimeter, Circumference, and AreaSquare
P =
A =
Triangle
P =
A =
Rectangle
P =
A =
Circle
C =
A =
Areas of Polygons Area 1
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Find the circumference of the circle in terms of π. What is the circumference of the circle to the nearest tenth?
What is the circumference of a circle with a radius of 12 m in terms of π?
What is the circumference of a circle with a diameter of 12 m to the nearest tenth?
What is the perimeter of ∆ EFG? Graph quadrilateral JKLM with vertices J(-3, -3), K(1, -3), L(1, 4), and M(-3, 1). What is the perimeter of JKLM?
What is the area of circle K in terms of π?What is the area of a circle with a diameter of 14 ft. in terms of π?
Find the area and perimeter of the figure.What is the area of the figure?
Practice:
Areas of Polygons Area 2
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Find the perimeter and area of each figure
Find the circumference and area of ⨀C in terms of π .
Graph each figure in the coordinate plane. Find each perimeter.13. X(0, 2), Y(4, -1), Z(-2, -1) 14. L(0, 1), M(3, 5), N(5, 5), P(5, 1
Find the area of the shaded region. All angles are right angles.
Areas of Polygons Area 3
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Find the perimeter of each figure.
Areas of Parallelograms and Triangles
Warm-Up:
The units of the floor plan at the right are in feet. Find the perimeter and area of each room.
a. The kitchen
b. The bedroom
c. The bathroom
d. The closet
What is the area of the main hallway? Explain how you could find this area using the area of each room.
Areas of Polygons Area 4
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Objectives: 1.
Class Notes:
What is the area?
Find the area
Areas of Polygons Area 5
Area of a Rectangle
Area of a Parallelogram
Area of a Triangle
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Find the area.
Practice:
Areas of Polygons Area 6
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Areas of Polygons Area 7
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Areas of Trapezoids, Rhombuses, and Kites
Warm-Up:
Find the area.
Areas of Polygons Area 8
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Objectives: 1.
Class Notes:Area of a Trapezoid
Find the area of each trapezoid.
Find the area of trapezoid PQRS?
Areas of Polygons Area 9
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Find the area of each trapezoid. If your answer is not an integer, leave it in simplest radical form.
Area of a Rhombus or a Kite
Find the area of kite KLMN?
Find the area of each kite.
Find the area of each rhombus.
Areas of Polygons Area 10
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Practice:Find the area of each figure.
Areas of Polygons Area 11
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Composite Figures
Warm-Up:
Areas of Polygons Area 12
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Objectives: 1.
Class Notes:
Find the area of each figure to the nearest tenth.
Practice:
Areas of Polygons Area 13
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Find the area.
Areas of Polygons Area 14
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Areas of Polygons Area 15
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Areas of Polygons Area 16
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Areas of Polygons Area 17
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Areas of Polygons Area 18