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3 years ago

Find the surface area of the composite figure.

Mathematics

1 answer:

fgiga [73]3 years ago

4 0

Answer:

470

Step-by-step explanation:

there are several surface areas.

1. the 4 side walls of the big block = 4*12*7 = 336

2. top and bottom of the big block = 2* 7*7 = 98

3. subtract the small rectangular area from the top area covered by the small block = 2*7 = 14

4. the 3 (visible) side walls of the small block on top =

3* 2*7 = 42

5. the small top and bottom areas of the small block =

2* 2*2 = 8

so, 1.+2.-3.+4.+5. = 470

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B) 2.4 inches

Step-by-step explanation:

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3 years ago

The volume of a cone of radius r and height h is given by V=πr²h³. If the radius and the height both increase at a constant rate

Aloiza [94]

Answer:

The volume of cone is increasing at a rate 1808.64 cubic cm per second.

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Kruka [31]

Answer:

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Step-by-step explanation:

We know that the point of intersection of the Medians of a triangle is called the centroid of a triangle.

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For the given triangle ΔJKL,

The point M is the centroid of the triangle.

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