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2 years ago

Find the surface area of a cone with a diameter of 6 and a side of 9.5

Mathematics

1 answer:

Anestetic [448]2 years ago

7 0

Answer: 122.17

Step-by-step explanation:

You have to use the formula: A=πr(r+h2+r2)

If the diameter is 6 then the radius is 3 and h is 9.5

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Tiana takes 3 hours to drive to the coast without stopping. How many minutes will it take her to reach the coast if she stops to

nika2105 [10]

3 hours is 180 minutes.

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2 years ago

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What is the hypotenuse of a right triangle that has legs measuring 6 cm and 8 cm?

ankoles [38]

C=10cm

Have a great day, I hope this helps.

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3 years ago

Sum of interior angles of a convex 14-gon

just olya [345]

Answer: 2160°

Step-by-step explanation:

The sum of angles in a polygon is represented by the formula:

Sum = (n - 2) x 180° where n is the number of sides in the polygon

In this case, the complex polygon has 14 sides (n = 14)

So, (14 - 2) x 180°

= 12 x 180°

= 2160°

Thus, the sum of interior angles of a convex 14-gon is 2160°

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2 years ago

matt kaminsky bought a volvo that is 3 3/4 times as expensive as the car his parents bought. if his parents paid $8,000 for thei

Evgen [1.6K]

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2 years ago

Find the side in of point a to point c

vladimir1956 [14]

Step 1:

Calculate the measure of angle ∠ABC

$\angle DBC+\angle ABC=180(\text{ sum of angles on a straight line)}$ $\angle ABC=65^0$ $\begin{gathered} \angle DBC+\angle ABC=180 \\ \angle DBC+65^0=180^0 \\ \angle DBC=180^0-65^0 \\ \angle DBC=115^0 \end{gathered}$

From the triangle in the question,

$a=10\operatorname{km},c=15\operatorname{km},B=115^0$

Step 2:

Calculate the value of AB using the cosine rule below

$b^2=a^2+c^2-2\times a\times c\times\cos B$

By substituting the values, we will have

$\begin{gathered} b^2=a^2+c^2-2\times a\times c\times\cos B \\ b^2=10^2+15^2-2\times10\times15\times\cos 115^0 \\ b^2=100+225-300\times(-0.4226) \\ b^2=325+126.78 \\ b^2=451.78 \\ \text{Square root both sides} \\ \sqrt[]{b^2}=\sqrt[]{451.78} \\ b=21.26\operatorname{km} \end{gathered}$

Hence,

The distance of point A to point C is = 21.26km

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2 months ago