3 years ago

Which statement describes volume?

Mathematics

1 answer:

devlian [24]3 years ago

7 0

Answer:

Volume is the quantity of three-dimensional space enclosed by a closed surface

Step-by-step explanation:

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Rzqust [24]

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3 years ago

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Please Solve this 10+2y

Zigmanuir [339]

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3 years ago

Find the total area for the regular pyramid.

hram777 [196]

Answer:

Option B

Step-by-step explanation:

Given is the hexagonal pyramid.

We know the radius of the base is same as its side.

Find the base area:

A = 3√3/2a²
A = 3√3/2*6² = 54√3

Given the height and radius, find the side of the lateral triangular faces:

$\sqrt{8^2+6^2} =\sqrt{100} =10$

Each of 6 triangles have sides 10, 10 and 6 units.

Find the area using heron's formula:

s = P/2 = (10*2 + 6)/2 = 13
s - a = s - b = 13 - 10 = 3
s - c = 13 - 6 = 7
$A = \sqrt{s(s-a)(s-b)(s-c)} =\sqrt{13*3*3*7} =3\sqrt{91}$

Total surface area:

$S = 6*3\sqrt{91}+54\sqrt{3} =18\sqrt{91}+54\sqrt{3}$

Correct choice is B

3 0

2 years ago

What is the y-intercept of the graph that is shown below?

Gnoma [55]

Answer:

(0,4)

Step-by-step explanation:

The y intercept is where the x value is zero

x=0 and y =4

The y intercept is (0,4)

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3 years ago

gave each student a pair of standard dice. The students rolled the dice once and reported their results to the teacher. How many

Salsk061 [2.6K]

42 times is the answer

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3 years ago