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lilavasa [31]
3 years ago
7

The radii of two cylinders are in the ratio 1 : 4 and their heights are in the ratio 3 : 1. The ratio of their lateral surface a

rea is ________. (a) 3 ∶ 4 (b) 4 : 3 (c) 9 : 16 (d) 16 : 9
Mathematics
1 answer:
Montano1993 [528]3 years ago
8 0

Answer:

a

Step-by-step explanation:

Cylinders:

Ratio of radii = 1 : 4

Radius of two cylinders are: r , 4r

Ratio of height = 3 :1

Height of two cylinders are: 3h , h

Lateral surface area of cylinder =  2πrh

Ratio of lateral surface area= 2π* r * 3h   : 2π* 4r * h

                                             = 3 : 4

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Dennis_Churaev [7]

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Step-by-step explanation:

Step 1:

To determine which of the given graphs represents the equation f(x) = 0.2^{x} + 3, we substitute some values in the place of x.

When x=0, f(x) = 0.2^{x} + 3, f(0) = 0.2^{0} + 3= 4.

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Step 2:

Now we substitute another value to determine which graph represents f(x) = 0.2^{x} + 3.

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So the third graph or bottom left graph represents f(x) = 0.2^{x} + 3.

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4 years ago
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oee [108]

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