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3 years ago

What is the volume of the cone

Mathematics

1 answer:

Irina-Kira [14]3 years ago

3 0

The formula for the volume of the cone is:

$V = \frac{1}{3} \pi r^{2} h$

Hence the answer is B.

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The figure below shows the design of a truss to support the weight of a roof. In this truss design, ∠A⩭∠D and ĀF⩭DF.

bearhunter [10]

Answer:

$m\angle A= 30^{\circ}$

Step-by-step explanation:

In the question, we're given $\angle A\cong \angle D$ . Therefore, the measure of these two angles must be equal.

To find the value of $x$ , set these two angles equal to each other:

$4x-26=x+16$

Add 26 and subtract $x$ from both sides:

$3x=42$

Divide both sides by 3:

$x=\frac{42}{3}=14$

Since $\angle A$ was labelled as $4x-26$ , substitute $x=14$ to find its measure:

$\angle A=4(14)-26,\\\angle A=56-26,\\\angle A=\boxed{30^{\circ}}$

You can also substitute $x=14$ into the label of angle D as angle A is congruent to angle D for easier calculations ( $14+16=\boxed{30^{\circ}}$ ).

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

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natta225 [31]

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Step-by-step explanation:

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2 years ago