3 years ago

A cone is 6 cm in height and its vertical angle is 54° calculate the radius of its base.

Mathematics

1 answer:

Romashka [77]3 years ago

8 0

Answer:

7cm

Step-by-step explanation:

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Can someone please help with 4-9

Gnom [1K]

Answer:

make sure you know how to find the square root then divide

Step-by-step explanation:

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3 years ago

True or false: the lateral surface of cone a is exactly 1/2 the lateral surface area of cylinder b

Mazyrski [523]

Answer:

True

Step-by-step explanation:

We have that,

The cone A has the length of the lateral side = h and the height of the cylinder B = h.

Since, the lateral surface areas are given by,

Lateral surface area of cone = $\pi r\times l$ , where l is the length of the lateral side.

So, we get $L_{A}$ = $\pi r\times h$ .

Also, Lateral surface area of cylinder is $2\pi r\times h$ , where h is the height of the cylinder.

So, we get $L_{B}$ = $2\pi r\times h$

Thus, we see that, $L_{A}=\frac{1}{2}\times L_{B}$

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3 years ago

A circle has a diameter of 5 inches. A square has a side length of 5 inches. What is true about the areas of the two figures?

Neporo4naja [7]

-- They are unequal

-- The area of the circle is (pi) (radius²) = 19.63 inches² .

-- The area of the square is (side length)² = 25 inches² .

-- The area of the square is 27.3% greater than the area of the circle.

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4 years ago

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Direct variation equation if f(x) varies directly with x and f(x)=-18 when x=3

JulsSmile [24]

F(x)=-6x
Work:
-18÷3=-6

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3 years ago

Which statement is true regarding the graphed functions?

padilas [110]

Answer:

Step-by-step explanation:

You can look them up in the graphs.

f(2) means "where is the blue graph when x=2?", and you can see it is at y=0.

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