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Vanyuwa [196]
2 years ago
6

Find the area of the figure below, formed from a triangle and a parallelogram.

Mathematics
1 answer:
ale4655 [162]2 years ago
8 0

Answer:

Total área: 9+9+8+6= 32 mm^2

Step-by-step explanation:

Square = 3x3 = 9mm^2

Triangle= Heigh: sqrt (3^2+3^2) = 9 and base=3

A = (9x3)/2 = 9mm^2

Rectangle= 4x2= 8mm^2

Triangle (high: 5-2=3)

(4x3)/2 = 6mm^2

Total area

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Answer:

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Step-by-step explanation:

It is perhaps simplest just to translate the given English sentence into a mathematical sentence.

... 20% ... ... of ... 57 ... is ... what number

... 20/100 ... × ... 57 .... = ... what number . . . . . . . . translation to math sentence

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If you're asked to write this as a proportion, you can write it like this:

\dfrac{20}{100}=\dfrac{\text{what number}}{57}

You can solve this proportion by multiplying by 57 (the denominator under "what number"). Doing so gives you the same arithmetic sentence as shown above.

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3 years ago
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First, mentally add the whole numbers.
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A reasonable estimate would be 13 1/8
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