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Yuki888 [10]
2 years ago
11

8th grade geometry part 3, please explain the steps :)))

Mathematics
1 answer:
Illusion [34]2 years ago
7 0

Answer: Volume = 97.6

Step-by-step explanation:

Volume of the cone first

V = 1/3 h π r²

<u>h = 0.7</u>

<u>r = 2</u>

V = 1/3 × 0.7 × 2² × 3.14

V = 1/3 × 0.7 × 4 × 3.14

V = 1/3 × 8.792

V = 2.93

Then find the volume of the cylinder if the cone was there.

V = π r² h

<u>r = 2</u>

<u>h = 8 </u>

V = 3.14 × 2² × 8

V = 3.14 × 4 × 8

V = 3.14 × 32

V = 100.48

Now you subtract the volume of the cone from the cylinder.

100.48 - 2.93 = 97.55

Rounded to the nearest tenth is 97.6

Hope this was helpful, I know it is a lot to look at but I tried my best.

Also, can I get brainliest? I worked really hard on this.

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<h2>Given:-</h2>

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<h2>Hope it helps...</h2>
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One angle measure in an obtuse isosceles triangle is 40°. What is the measure of one of the other angles? 70° 100° 120° 140°
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Given :

  • The Perimeter of the rectangle is 60 cm
  • The ratio of the length to the width is 3:2.

To Find :

  • The Length and width of the rectangle .

⠀

Solution :

We know that,

\qquad{ \bold{ \pmb{2(Length + Breadth ) = Perimeter_{(rectangle)}}}}

Let's assume the length of the rectangle as 3x inches. and the width is 2x inches.

⠀

Now, Substituting the given values in the formula :

\qquad \dashrightarrow{ \sf{2(3x + 2x )= 60}}

\qquad \dashrightarrow{ \sf{2(6x)= 60}}

\qquad \dashrightarrow{ \sf{12x= 60}}

\qquad \dashrightarrow{ \sf{x=  \dfrac{60}{12} }}

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\qquad { \pmb{ \bf{ Length _{(rectangle)} = 3x \: = 3(5) = 15 \: inches}}}\:

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