3 years ago

A regular polygon has possible angles of rotational symmetry of 20°, 40°, and 80°. How many sides does the polygon have?

Mathematics

1 answer:

natima [27]3 years ago

3 0

This polygon will have 18 sides.

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Need help in answering the question below.

irakobra [83]

Answer:

About 4.123

Step-by-step explanation:

The horizontal distance between the two points is 5-1 = 4 units. the vertical distance is 3-2=1 unit. Using the Pythagorean theorem, we can find that the length is:

$\sqrt{4^2+1^2}=\sqrt{17}\approx 4.123$

7 0

3 years ago

A yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. If the store has 16 possible toppi

konstantin123 [22]

Answer:

48.

Step-by-step explanation:

you multiply 16 x 3 to get your final answer.

5 0

3 years ago

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Which is not true 10 + 9 = 7 + 12 10 = 10 10 - 4 = 3 + 3 10 = 19 - 11

Natasha2012 [34]

Answer:

10=19-11

Step-by-step explanation:

that answer is false because 19-11 = 8 not 10

3 0

3 years ago

Read 2 more answers

What is the slope of the line below

Fofino [41]

Answer:

C. $\frac{1}{2}$

Step-by-step explanation:

You can use the formula to find the slope: $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

(-1.5, 1.5) & (1.5, 0)

$\frac{0-(-1.5)}{1.5-(-1.5)} =\\\\\frac{0+1.5}{1.5+1.5} =\\\\\frac{1.5}{3} =\\\\\frac{1}{2}$

The slope is $\frac{1}{2}$

3 0

3 years ago

Polygons ABCD and EFGH are similar. What is the perimeter of EFGH?

Rom4ik [11]

If polygons ABCD and EFGH are similar, then their perimeters most likely are also similar. Polygon EFGH also have the same perimeter with polygon ABCD. Having similar polygons is referred as congruent polygons. Two figures are said to be congruent when they have the same shape and size or if one object is a mirror image of the other object.

5 0

4 years ago