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vodka [1.7K]
3 years ago
10

For which shape is 45 degrees the smallest angle of rotational symmetry?

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
4 0

Answer:

Step-by-step explanation:

You want the external angle to be 45°.

If n = number of sides, the external angles are each 360°/n = 45°

n = 360/45 = 8

The shape is a regular octagon.

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Just multiply.

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6 0
3 years ago
7. The cost of renting the party room for 10 people is $117.50. The cost of renting the room is $151.25 for 15 people. Write an
Viktor [21]

Answer:

C = 6.75n + 50

Step-by-step explanation:

The equation for the cost of renting the party room can be written in the form;

C= mn+k ......i

Where C = cost

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Substituting the 2 cases into the equation we have,

Case 1

117.5 = 10m + k ......1

Case 2

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Subtracting eqn 1 from 2 we have

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m = 33.75/5 = 6.75

Substituting m = 6.75 into eqn 1, we have

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k = 50

Therefore, rewriting the eqn i, we have

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5 0
3 years ago
Write the equation of a line in standard form that has x-intercept (P,0) and y-intercept (0,R).
ExtremeBDS [4]

Answer:

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Therefore, the equation that represents this line is

Rx+Py=RP

<h2>So, the right answer is B.</h2>
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8 0
2 years ago
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kykrilka [37]

Answer:

  there both cercles

Step-by-step explanation:

4 0
3 years ago
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