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Warm up: What is the area of the parallelogram?
A triangular window pane is 4 feet 8 inches wide and 3 feet 6 inches high. What is the area of the window pane? Round to the nearest tenth square foot if necessary. What is the area of the figure below?
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10.2 - Areas of Trapezoids, Rhombuses, and Kites
I can find the area of a trapezoid, rhombus, or kite.
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You can find the area of a trapezoid when you know its height and the lengths of its bases.
The area of a trapezoid is half the product of the height and the sum of the bases. A = 1/2h( π π 2 )
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Problem: Area of a Trapezoid
What is the approximate area of Nevada?
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Problem: Area of a Trapezoid
What is the area of a trapezoid with height 7 cm and bases 12cm and 15 cm?
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Problem: Finding Area Using a Right Triangle
What is the area of trapezoid PQRS?
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Problem: Finding Area Using a Right Triangle
In Problem 2, suppose h decreases so that m<P = 45 while angles R and Q and the bases stay the same. What is the area of trapezoid PQRS?
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Problem: Area of a Trapezoid
What is the area of the trapezoid below?
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Area of a Rhombus or a Kite
You can find the area of a rhombus or a kite when you know the lengths of its diagonals. Area of a Rhombus or a Kite
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Problem: Finding the Area of a Kite
What is the area of kite KLMN?
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Problem: Finding the Area of a Kite
What is the area of a kite with diagonals that are 12 in. and 9 in. long?
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Problem: Finding the Area of a Kite
What is the area of kite ABCD?
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Problem: Finding the Area of a Rhombus
The High Occupancy Vehicle (HOV) land is marked by a series of βdiamondsβ, or rhombuses painted on the pavement. What is the area of the HOV lane diamond shown at the right?
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Problem: Finding the Area of a Rhombus
A rhombus has sides 10 cm long. If the longer diagonal is 16 cm, what is the area of the rhombus?
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Problem: Finding the Area of a Rhombus
What is the area of the rhombus below?
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After: Lesson Check Find the area of each figure.
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Homework: Page 626, #12-32 even
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