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Area = 1/2 base * perpendicular height

so 1/2*21*9

=94.5 square units

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14y ago
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13y ago

1/2 x base x height

= 1/2 x 5 x 3

= 7.5

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Wiki User

9y ago

Area is 18cm2

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Q: What is the area of a triangle with base 5 and height 3?
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