11.2 Areas of Trapezoids, Rhombuses

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11.2 Areas of Trapezoids, Rhombuses Kites

• Assignment 9 11.2 WB Pg. 142 1 10 all

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Trapezoids
b1 base 1
h height
leg
leg
Height distance between the 2 bases. Must
be ?
b2 base 2
base
base
Area of trapezoid
A ½ h(b1 b2)
Height
3
Ex. 1 Find the area of the following
trapezoid.
20in
30in
18in
36in
4
Ex. 2 Find the area of following trapezoid.
This is a 30-60-90 ?
5cm
h
60
7cm
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Area of a Rhombus or a Kite

• Rhombus
• 4 equal sides.
• Diagonals bisect each other.
• Diagonals are ?.

• Kite
• Adjacent sides are ?.
• No sides //.
• Diagonals are ?.

Area of Kites or Rhombi
A ½ d1d2
Diagonal One
Diagonal Two
6
Example 3 Find the Area of the following
Kite.
4m
3m
3m
5m
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Example 4 Find the area of the following rhombus
15m
12m
b
12m
15m