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KengaRu [80]
3 years ago
9

10. A cube has edge length c. (a) Write a formula for the surface area of the cube. (b) Use the formula to find the surface area

when c is 6 cm.​

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0

Answer:

a) 6c^2

b) 216 cm^2

Step-by-step explanation:

A) the area of one face of the cube, is the side length x the side length. As it is a cube, all sides are the same length, so we do c x c = c^2

There are 6 faces in a cube so we have to times one face by 6 to get  6c^2

B) c = 6

substituting this into the equation we made:

6 x (6)^2

6 x 36

216

So the surface area is 216 cm^2.

Hope this helps, let me know if you have any questions :)

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What is the sum of the prime factors of 1260? For example, the sum of the prime factors of 20
Genrish500 [490]

Answer:

The answer is 22

Step-by-step explanation:

Do Prime Factorization of 1260

(as shown in the picture I attached)

Prime factors of 1260 = 2, 2, 3, 3, 5, 7

Now to get the sum of the prime factors of 1260, you just have to add all the factors

2 + 2 + 3 + 3 + 5 + 7 = 22

Hope this helps!

3 0
3 years ago
Are the two triangles similar?
Tpy6a [65]

Answer:

Option B Yes by AAA

Step-by-step explanation:

we know that

If the two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent

so

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substitute the values and verify

\frac{8}{12}=\frac{6}{9}

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4 0
3 years ago
Michael wants to buy a comic book and it costs $13.00. He has $6.85. How much
Artemon [7]

Answer:

micheal need 6.15

Step-by-step explanation:

open the document and you will get the show your work part good luck

13.00

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3 0
3 years ago
Work out the area of triangle give your answer to 1 decimal place ​
forsale [732]

<u>Given</u>:

Given that the triangle.

Let the length of the side a be 10 cm.

Let the length of the side b be 13 cm.

Let the measure of ∠C is 105°

We need to determine the area of the triangle.

<u>Area of the triangle:</u>

The area of the triangle can be determined using the formula,

A=\frac{1}{2} a b \ sin \ c

Substituting a = 10, b = 13 and ∠C = 105°, we get;

A=\frac{1}{2}(10)(13) \ sin \ 105

Simplifying, we get;

A=\frac{1}{2}(10)(13)(0.966)

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Rounding off to 1 decimal place, we have;

A=62.8 \ cm^2

Thus, the area of the triangle is 62.8 cm²

7 0
3 years ago
Check all statements that are true. If none are true click “None”
padilas [110]

Answer:

B and E are True.

Step-by-step explanation:

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2 years ago
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