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AlexFokin [52]
3 years ago
10

Please answer the question

Mathematics
2 answers:
Marizza181 [45]3 years ago
5 0
I believe it is number iii #3
Masteriza [31]3 years ago
3 0

The angles of a triangle sum up to 180^\circ. So, if you know two of them (let's say \alpha and \beta), you can find the third angle \gamma by subtraction:


\alpha +\beta +\gamma = 180^\circ \iff \gamma = 180^\circ-\alpha -\beta  = 180^\circ-(\alpha +\beta)


So, in the first case, the given angles sum to 120^\circ, so the remaining one must be 60^\circ


In the second case, the given angles sum to 19^\circ, so the remaining one must be 161^\circ


In the third case, the given angles sum to 108^\circ, so the remaining one must be 72^\circ


In the fourth case, the given angles sum to 159^\circ, so the remaining one must be 21^\circ


Finally, the triangle with two sides of the same length is the one with two angles of the same measure, so the third one, which is isosceles.

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In 14 the perimeter of the figure Is given. find the length of the indicated side
olga2289 [7]

3x - 7

The perimeter is the sum of all 3 sides of the triangle

To find the third side subtract the sum of the 2 known sides from the perimeter

x + 3 + 2x + 4 = 3x + 7

third side = 6x - (3x + 7 ) = 6x - 3x - 7 = 3x - 7


4 0
3 years ago
NEED HELP IN MATH , SERIOUS ANSWERS PLEASE
Damm [24]
The answer would be they are congruent. 

It's because there was no vertical/horizontal stretch and compression listed in the problem's transformations. The figure was translated throughout the graph. 

4 0
3 years ago
Read 2 more answers
If BC = 61 and AB = 82, what is the length of AC?
Nitella [24]

Answer:

54.8

Step-by-step explanation:

Pythagorean theorem is a^2+b^2=c^2.

Plug the given values in to get 61^2+b^2=82^2

61^2 is 3,721 and 82^2 is 6,724.

6,724-3,721 is 3,003.

The square root of 3,003, rounded to a reasonable value, is 54.8.

The length of AC is 54.8.

4 0
3 years ago
Which of the following words is defined as “the study of hearing”? audiology audiologist audiometer audio
elena55 [62]
Audiology 100% hope this helps :)
4 0
3 years ago
6/5 ÷ ____ = 6<br><br> A. 1/5<br> B. 30 <br> C. 1/30<br> D. 5
murzikaleks [220]

Answer:

A. \displaystyle \frac{1}{5}

Step-by-step explanation:

\displaystyle \frac{6}{5} \div \frac{1}{5} = 6 \\ \\ OR \\ \\ \frac{6}{5} \div 6 = \frac{1}{5}

I am joyous to assist you anytime.

4 0
3 years ago
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