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WARRIOR [948]
4 years ago
10

What are the angles in a 30˚- 60˚- 90˚ triangle after it is rotated 45˚?

Mathematics
1 answer:
VikaD [51]4 years ago
3 0

Answer:

The correct option is;

30° - 60° - 90°

Step-by-step explanation:

Rotation is one of the three rigid transformation of which others are reflection and translation. In a rotation transformation of a figure about a fixed point, known as the center of rotation, the figure is turned in a circular path about the fixed point or center of rotation. The size and shape of the pre-image the rotation are the same however, depending on the angle of rotation, their facing directions may be different. The specification of a rotation can be in the clockwise direction or in the anti-clockwise direction

The shape of the triangle in the question and the image are the same and are therefore congruent. All interior angles of the triangle and those of its rotation will therefore be congruent.

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nordsb [41]

Answer:

B.

Step-by-step explanation: I took the test.

3 0
3 years ago
What properties do you think stay the same after a translation?
Dafna11 [192]

Answer:

Shape and scale remain the same.

Step-by-step explanation:

Shape and scale remain the same.  Translation does not affect the shape of a graph or area, nor does it dilate the graph (make it either larger or smaller).

4 0
3 years ago
suppose you randomly choose an integer n between 1 to 5, and then draw a circle with a radius of n centimetres. What is the expe
const2013 [10]
The set of possible integers is 1, 2, 3, 4, and 5.

The area of a circle with radius of n centimeters = π(n)^2.

So, the set of possible values are:

n       area = π(n^2)

1       π

2       4π

3       9π

4       16π

5       25π

And the expected value of the area may be determined as the mean (average) of the five possible areas:

expected value of the area = [ π+ 4π + 9π + 16π + 25π] / 5 = 11π ≈ 34.5575, which rounded to the nearest hundreth is 34.56

Answer: 34.56
5 0
3 years ago
294 blue balls, 252 pink balls and 210 yellow balls are distributed equally among some students with none left over. What is the
Savatey [412]
You have to find the greatest number that divide 294, 252 and 210, i.e., the greatest common factor.

Then, you need to factor each number and calculate the product of the common factors raised to the lowest exponent.

294 = 2*3*7^2
252 = 2^2 * 3^2 * 7
210 = 2*3*5*7

Greatest common factor = 2*3*7 = 42

The biggest possible number of students to distribuute the balls equally is 42

6 0
4 years ago
Use the spinner to identify the probability to the nearest hundredth of the pointer
hammer [34]
The sum of the angles of the shaded area is 120°, and there are 360° in a circle, so the probability of landing on it is 1/3 of 33.33% repeating
8 0
3 years ago
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