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Perimeter and Area

Perimeter and Area. Objectives. Calculate the area of given geometric figures. Calculate the perimeter of given geometric figures. Use the Pythagorean theorem to find the lengths of a side of a right triangle. Solve word problems involving perimeter, area, and/or right triangles.

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Perimeter and Area

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  1. Perimeter and Area

  2. Objectives • Calculate the area of given geometric figures. • Calculate the perimeter of given geometric figures. • Use the Pythagorean theorem to find the lengths of a side of a right triangle. • Solve word problems involving perimeter, area, and/or right triangles.

  3. Vocabulary • polygon • perimeter • area • trapezoid • parallelogram • triangle • rectangle • circle • circumference • radius • diameter • legs (of a right triangle) • hypotenuse

  4. Area Formulas Triangle Heron’s Formula for Area of Triangle Rectangle and Parallelogram Trapezoid

  5. Circle Formulas Circumference (Perimeter) Area

  6. Pythagorean Theorem For right triangles c b a

  7. Find the perimeter and area of the figure below

  8. Find the area of the figure below

  9. Find the area of the figure below

  10. Find the area of the figure below

  11. Find the area of the figure below

  12. Find the area of the figure below

  13. Find the length of the third side of the triangle below

  14. Find the perimeter and area of the circle below

  15. Find the perimeter and area of the semicircle below

  16. Walk 100 yards south, then 120 west and then 30 yards south. How far from the original starting point are you?

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