3 years ago

Will mark brainlist if you answer this correctly!!!

Mathematics

1 answer:

luda_lava [24]3 years ago

8 0

It’s e the answer is e

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The cone and cylinder below have equal surface area

marissa [1.9K]

Answer:

Option B, False

Step-by-step explanation:

Step 1: Get the surface area formulas for both shapes

Surface Area Formula for Cone: $A = \pi * r(r + \sqrt{h^{2} + r^{2}})$

Surface Area Formula for Cylinder: $A = 2\pi rh+2\pi r^{2}$

Step 2: Plug in the values and solve

Cone: $A = \pi * r(r + \sqrt{(3r)^{2} + r^{2}})$

Cone: $A = \pi r^{2} + \pi \sqrt{10}r^{2}$

Cylinder: $A = 2\pi r*r+2\pi r^{2}$

Cylinder: $A=4 \pi r^{2}$

Step 3: Compare

$\pi r^{2} + \pi \sqrt{10}r^{2}\neq 4 \pi r^{2}$

They are not equal, therefore the answer is False.

Answer: Option B, False

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3 years ago

Find the volume of a pyramid with a square base, where the area of the base is 19.8 cm2 and the height of the pyramid is 13.9cm.

PilotLPTM [1.2K]

Answer:

91.7 cm^3

Step-by-step explanation:

$Vol=\frac{1}{3} \times base area \times height=\frac{1}{3} \times 19.8 \times 13.9= 91.7 cm^{3}$

7 0

3 years ago

Can someone answer the last two questions

Oksana_A [137]

1.Mon 2. 19 or 20 3. 4 or 3 4.it’s like stairs but

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3 years ago

Read 2 more answers

Can somebody please find the answer I will mark brainliest

mash [69]

Answer:

1= 102°,3=78°,4=102°

5=102°,6=78°,7=78°,8=102°

Step-by-step explanation:

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3 years ago

Cuál es primer número natural o entero positivo que conoces

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Answer:

Los números naturales incluyen solo enteros positivos y comienzan desde 1 hasta infinito

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3 years ago