Transcript Geometry - BakerMath.org

Geometry
Areas of Trapezoids, Rhombuses
and Kites
Goals:


Find the area of rhombuses, kites, and
trapezoids.
Solve problems by combining areas.
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Area



The measure of part of a plane surface.
Measured in square units.
10 square inches can be written 10 in2.
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Area of a Trapezoid
b1
1
A  h(b1  b2 )
2
h
b2
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Area of a Rhombus
d1
d2
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1
A  d1d 2
2
Area of a Kite
d2
d1
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1
A  d1d 2
2
Kites and Rhombuses


In each of these, the diagonals are
perpendicular.
They have the same area formula.
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Area of a quadrilateral with
perpendicular diagonals.
1
A  d1d 2
2
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