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3 years ago

Jasper slices a cone and the cross section is a triangle. How could Jasper have made the slice?

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

Jasper slices parallel to the base through the vertex.

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What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?

Rasek [7]

Answer:

$105.84\ cm^2$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is

$A=\pi r^{2}$

we have

$r=21.2/2=10.6\ cm$ ----> the radius is half the diameter

substitute

$A=\pi (10.6)^{2}$

$A=112.36\pi\ cm^2$

step 2

Find the area of a sector

Remember that

The area of the circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector with a central angle of 108 degrees

$\frac{112.36\pi}{360^o}=\frac{x}{108^o}\\\\x=112.36\pi(108)/360\\\\x=33.708\pi\ cm^2$

assume

$\pi=3.14$

substitute

$33.708(3.14)=105.84\ cm^2$

7 0

3 years ago

(Will mark brainliest) Please help as soon as possible for 30 points

Marianna [84]

Answer:

Step-by-step explanation:

a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90

7 0

3 years ago

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How do you write two thousand sixteen and nineteen hundreths in standard form

12345 [234]

Answer:

2,016.19

Step-by-step explanation:

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2 years ago

9. Arrange 3 519;3951; 3191 in descending order.

svlad2 [7]

Answer:

3951>3519>3191

Step-by-step explanation:

hope you understood how

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3 years ago

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Nadya [2.5K]

Answer:

Step-by-step explanation:

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3 years ago