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Nina [5.8K]
3 years ago
14

Which three lengths could be the lengths

Mathematics
1 answer:
Fed [463]3 years ago
6 0

Given:

The three lengths in the options.

To find:

Which three lengths could be the lengths of the sides of a triangle?

Solution:

If the sum of two smaller sides is greater than the largest side, then the three sides can form a triangle otherwise the triangle is not possible.

In option A, the three sides are 4 cm, 8 cm, 13 cm. Here, the largest side is 13 cm.

Sum of two smaller sides is:

4+8=12

4+8

So, the triangle is not possible.

In option B, the three sides are 13 cm, 11 cm, 23 cm. Here, the largest side is 23 cm.

Sum of two smaller sides is:

13+11=24

13+11>23

So, the triangle is possible.

In option C, the three sides are 5 cm, 18 cm, 12 cm. Here, the largest side is 18 cm.

Sum of two smaller sides is:

5+12=17

5+12

So, the triangle is not possible.

In option D, the three sides are 25 cm, 8 cm, 16 cm. Here, the largest side is 25 cm.

Sum of two smaller sides is:

8+16=24

8+16

So, the triangle is not possible.

Therefore, the correct option is B. The three lengths 13 cm, 11 cm, 23 cm could be the lengths of the sides of a triangle.

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1
Salsk061 [2.6K]

Answer:

36

Step-by-step explanation:

A metal rod is 3/4 meters long. It will be cut into pieces that are each 1/48 meters long. How many pieces will be made from the rod?

let n = number of pieces the rod would be cut into

the following equation can be used to represent the question

3/4 x 1/n = 1/48

divide both sides of the equation by 3/4

1/n = 1/48 ÷ 3/4

1/n = 1/48 x 4/3 = 1/36

n = 36 rods

6 0
3 years ago
Function P represents the number of people in the library on a Monday as a function of hours since the library opened.
zhenek [66]

Answer:

Step-by-step explanation:

5 0
2 years ago
If two triangles have equal perimeters, then they could also have which of the following? Select all that apply.
Radda [10]

Answer: The answers is (B) equal areas.

Step-by-step explanation:  Given that two triangles have equal perimeters.

As shown in the attached figure, let us consider two right-angles triangles, ΔABC and ΔDEF, with sides AB = 3 cm, BC = 4 cm, AC = 5 cm, DE = 4 cm, EF = 3 cm and DF = 5 cm.

So the perimeters of both the triangles = 3 + 4 + 5 = 4 + 3 + 5 = 12 cm.

Since volume term is not valid in case of triangles, so they cannot have equal volumes. Therefore, option (A) is incorrect.

Area of ΔABC is

A_{ABC}=\dfrac{1}{2}\times AB \times BC = \dfrac{1}{2}\times 3\times 4=6~\textup{cm}^2,

and area of ΔDEF is

A_{DEF}=\dfrac{1}{2}\times DE\times EF=\dfrac{1}{2}\times 4\times 3=6~\textup{cm}^2.

Therefore, they may have equal areas and so option (B) is correct.

If the triangles have equal bases, then the heights will also be equal and both the triangles will be same. Similar is the case with equal heights. So, options (C) and (D) are incorrect.

Thus, the correct option is (B). equal areas.

4 0
3 years ago
A triangle has two side lengths of 7 and 12. what value could the length of the third side be?
erik [133]

Answer:

13.9

Step-by-step explanation:

7^2 + 12^2 = c^2

49 + 144 = 193

square root 193

and it’s 13.9

6 0
3 years ago
Read 2 more answers
You can tell that pi is an irrational because it has a what
8090 [49]

I'll guess the answer is <em>you can tell that pi is an irrational because it has a </em>non-terminating yet non-repeating decimal representation.<em> </em>

Of course it's not clear how we tell this.  We can't know for sure just by looking at the first trillion digits we've figured out whether it repeats or not.  Someone told us it didn't, that's really how we know.


3 0
3 years ago
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