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Marina CMI [18]
3 years ago
10

Please help me I’m so lost

Mathematics
2 answers:
kolezko [41]3 years ago
5 0
Area of a FULL circle is founded by Pi multiplied by radius squared

But, in the figure, a semicircle is shown , so we change the formula so that it become Pi multiplied by radius squared divided by two ( because it is HALF of a circle)

We half the diameter in order to get the radius (44/2 is 22)

Pi multiplied by 22^2 divided by 2

Which is 760.27
Svetllana [295]3 years ago
4 0

Answer:

759.88 square inches

Step-by-step explanation:

r =  \frac{1}{2}d =  \frac{1}{2} \times 44 = 22 \\    \\ area = \frac{1}{2}  \pi \:  {r}^{2}  \\ area =  \frac{1}{2}  \times 3.14 \times 22 \times 22 \\ area = 759.88 \: square \: inches

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Does a=2.1 b=7.2 c=7.5 form a right triangle
Anna007 [38]

Answer:

Yes

Step-by-step explanation:

If the longest side squared is equal to the sum of the squares on the other 2 sides then they form a right triangle

longest side = 7.5

7.5² = 56.25

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Thus the 3 values form a right triangle.

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Hello,

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1 year ago
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We find the area of the total square which is 8in • 8in=64in^2 . Now we find the area of the small quadrilateral which is 4in•4in=16 in^2.
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3 years ago
Consider the right triangle below.
MaRussiya [10]

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