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Doss [256]
2 years ago
5

Which set of numbers could be the length of the sides of a triangle?

Mathematics
1 answer:
san4es73 [151]2 years ago
4 0

3. {6,9,15)

for these u have use Pythagoras theorem

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Find the remaining side of a 45° – 45° – 90° triangle if the shorter sides are 2/3 each .
Amiraneli [1.4K]

Answer:

The length of the longer side is 2√2/3

Step-by-step explanation:

A 45-45-90 triangle is a right-angled triangle.

In fact, since it has two angles equal, it is a right angled isosceles triangle. What we are saying is that two of its sides are equal.

Hence, we have two short sides which are the opposite and the adjacent and a longer side which is the hypotenuse

Thus, to find the length of the longer side, we employ Pythagoras’ theorem and it states that the square of the hypotenuse equals the sum of the squares of the two other sides;

Mathematically, let’s call the longer side x

so x^2 = (2/3)^2 + (2/3)^2

x^2 = 4/9 + 4/9

x^2 = 8/9

x = √(8/9)

x = 2√2/3

4 0
2 years ago
A phone company charges a base fee of $12 per month plus an additional charge per minute.the monthly phone cost c can be represe
kupik [55]

Answer:

I believe it's this:

A. M= (C-12)/a  (Not sure.)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
4(x + y)= pleaseee answer I need this done by today
san4es73 [151]

4x+4y..........................

3 0
2 years ago
True or false? An obtuse triangle cannot be similar to an acute triangle.
daser333 [38]

Answer:

True

Step-by-step explanation:

an obtuse triangle is a big one, an acute triangle is a small one. They are both triangles, but they are not similar besides that

3 0
3 years ago
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The entrance hall in Black's family house has a perimeter of 71 2/3 ft.IF it is 9 2/5 ft wide, how long is it?
serious [3.7K]

Answer: 26 13/30 feet

Step-by-step explanation:

The hall is in the shape of a rectangle. The perimeter of a rectangle is:

= 2(length + width)

= 2l + 2w

Since perimeter = 71 2/3 ft and Width = 9 2/5 ft wide, the length will be calculated thus:

Perimeter = 2l + 2w

71⅔ = 2l + 2(9 2/5)

71 2/3 = 2l + (2 × 47/5)

71 2/3 = 2l + 94/5

71 2/3 = 2l + 18 4/5

Collect like terms

2l = 71 2/3 - 18 4/5

2l = 71 10/15 - 18 12/15

2l = 52 13/15

l = (52 13/15 ÷ 2)

l = 793/15 × 1/2

l = 793/30

l = 26 13/30

Therefore, the length is 26 13/30ft

3 0
2 years ago
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