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2 years ago

Find the surface area of the cone in terms of pi. 15cm 3cm

Mathematics

2 answers:

BaLLatris [955]2 years ago

6 0

Answer:

The surface area of cone = 54π cm²

Step-by-step explanation:

Given ;

Radius = 3 cm

slant height = 15cm

The surface area of cone = πr ( r + l )

=> π × 3 ( 3 + 15)

=> π × 3 ( 18)

=> 54 π cm²

mrs_skeptik [129]2 years ago

3 0

Answer:

Option a

Explanation :

check out my attached work

Hope it helps, let me know if you have any questions !

Have a nice rest of your day :)

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Two agent angles of a parallelogram are in the ratio 1 by 3 find the measures of all the angles

zalisa [80]

Answer:

The measure of all the angles are;

45°, 135°, 45°, and 135°

Step-by-step explanation:

The given parameters are;

The ratio of two adjacent angles of the parallelogram = 1:3

Let x represent one of the adjacent angles, and let y represent the other adjacent angle

Given that two adjacent angles of a parallelogram are supplementary, we have;

x + y = 180°

x:y = 1:3

Therefore, y = 3 × x = 3·x, which gives;

x + 3·x = 180°

4·x = 180°

x = 180°/4 = 45°

y = 3 × x = 3 × 45° = 135°

Given that opposite interior angles of a parallelogram are equal, we have, the measure of all the angles are;

45°, 135°, 45°, and 135°.

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2 years ago

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Anestetic [448]

Since 5 miles is equaled to 4 inches multiply the 8 miles by 4/5 to get 6 2/5

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3 years ago

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alukav5142 [94]

The final answer would be:
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The exact steps are shown in the attached picture.
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If three pounds of coffee costs $22.56, what is the cost of 1

NeX [460]

Answer:

$7.52 = 7 dollars and 52 cents.

Step-by-step explanation:

Given that three pounds of coffee = $22.56

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Thus, we would have:

$\frac{22.56}{3} = 7.52$ .

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$7.52 = 7 dollars and 52 cents.

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2 years ago