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3 years ago

Find the area of the following shape. You must show all work to receive credit.

Mathematics

1 answer:

statuscvo [17]3 years ago

8 0

Answer:

8 unit ^2 or 8cm^2

Step-by-step explanation:

area 1

1/2 ( 3 x 3 ) = 4.5 unit ^2

area 2 we split the triangle into half

= 1/2 ( 2 x 2) = 2 unit ^2

we know the other half is also 2 unit ^2 but we add then subtract

1/2 (1 x 1) = 0.5^2

To get

4.5 + 2+ 2 - ( 0.5) = 8 unit ^2

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2 years ago

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3 years ago

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3 years ago

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miv72 [106K]

For this case we have the following vectors:
$a = (2,1, -4)

b = (- 3,0,1)

c = (- 1, -1,2)$
The dot product of two vectors is a scalar.
The point product consists of multiplying component by component and then adding the result of the multiplication of each component.
For the product point of the vectors a and b we have:
$a.b = (2,1, -4). (- 3,0,1)

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3 years ago