112 Areas of Trapezoids, Rhombi, and Kitesimages.pcmac.org/.../Uploads/Forms/Geo_Lesson_11-2.pdf ·...
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Geo 112 Lesson with notes 4th b.notebook 1 April 27, 2016 Apr 12:56 PM 112 Areas of Trapezoids, Rhombi, and Kites Learning Targets: I can find areas of trapezoids I can find area of rhombi and kites What other shapes are common for handbags? What could be an advantage of a trapezoid shaped handbag? What would be a simple way to make an upper estimate for the area of the trapezoid? Apr 251:34 PM
Transcript of 112 Areas of Trapezoids, Rhombi, and Kitesimages.pcmac.org/.../Uploads/Forms/Geo_Lesson_11-2.pdf ·...
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 12:56 PM
112 Areas of Trapezoids, Rhombi, and Kites
Learning Targets:I can find areas of trapezoidsI can find area of rhombi and kites
What other shapes are common for handbags?
What could be an advantage of a trapezoidshaped handbag?
What would be a simple way to make an upper estimate for the area of the trapezoid?
Apr 251:34 PM
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 251:49 PM
Apr 13:02 PM
Height of a trapezoid: perpendicular distance between its bases
Two congruent trapezoids fit together to form a parallelogram. The base is the sum of b1 and b2.
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:07 PM
Apr 13:08 PM
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:09 PM
Example 1:
1. Find the area of the steel used to make the razor blade shown.
2. Find the area of glass used to make the windshield of the van shown.
Apr 13:12 PM
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:14 PM
Example 2:
3. Miguel designed a deck shaped like the trapezoid shown. Find the area of the deck.
4. Owen designed the silver earrings shown that are shaped like isosceles trapezoids. What is the area of each earring?
Apr 13:18 PM
Area of a rhombus and a kite is related to its diagonals.
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:26 PM
Apr 13:29 PM
Example 3: Find the area of each rhombus or kite.
5. 6.
7. 8.
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:32 PM
Apr 13:33 PM
Example 4:
10. One diagonal of a rhombus is half as long as the other diagonal. If the area of the rhombus is 64 square inches, what are the lengths of the diagonals?
Find x.
11. A = 92 in2 12. A = 177 cm2
13. What is the area of the kite?
Geo 112 Lesson with notes 4th b.notebook
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April 27, 2016
Apr 13:38 PM
