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4 years ago

each exterior angle of a regular polygon measures 20 degrees. How many sides does the polygon have?

Mathematics

2 answers:

Nataly [62]4 years ago

6 0

Answer & Explanation:

Since the sum of the exterior angles of a polygon is 360° and an angle of the regular polygon is 20°, then 360° / 20° is the number of sides. Let the number of sides be n. n = 18, an octadecagon.

Aleks [24]4 years ago

5 0

Answer:

18 sides

Step-by-step explanation:

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Fully factories 30x-20

notsponge [240]

Answer:

10(3x-2)

Step-by-step explanation:

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3 years ago

FIND THE AREA OF THE SHADED SECTION IN THE CIRCLE THE SHADED SECTION IS 35 DEGRESS AND THE RADIUS IS 5 INCHES. USE THE FORMULA:

Natali [406]

Answer:

Area of sector of circle = 7.6302 inches (Approx.)

Step-by-step explanation:

Given:

Angle of section = 35°

Radius of circle = 5 inch

Find:

Area of shaded section

Computation:

Area of shaded section = Area of sector of circle

Area of sector of circle = [θ/360][πr²]

Area of sector of circle = [35/360][(22/7)(5)²]

Area of sector of circle = [0.0972][(3.14)(25)]

Area of sector of circle = [0.0972][78.5]

Area of sector of circle = 7.6302 inches (Approx.)

6 0

3 years ago

Solve x2 + 4x + 1 = 0.

docker41 [41]

Answer: Option C ( $x=-2$ ± $\sqrt{3}$ )

Step-by-step explanation:

1. To solve this problem you must use the Quadratic formula, which is used to solve quadratic equation. This formula is shown below:

$x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}$

2. Substitute values. Then, you have:

$a=1\\b=4\\c=1$

$x=\frac{-4+/-\sqrt{4^{2}-4(1)(1)}}{2(1)}$

3. Then,you obtain the following result:

$x=-2$ ± $\sqrt{3}$

5 0

4 years ago

A bus covers 270 km distance in 6hrs i) Find the speed of the bus in the km/per hr ii) how many kilometer does it travel in 9hrs

ale4655 [162]

Answer:

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When speed is 60 kmph

Time taken to complete the journey =

360

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3 years ago

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What is the factorization of the trinomial below? -X^2 - 2x + 48

raketka [301]

Answer:

<h3>I think option C.</h3>

(x-6) (x-8).

3 0

3 years ago

Read 2 more answers

each exterior angle of a regular polygon measures 20 degrees. How many sides does the polygon have? ​

each exterior angle of a regular polygon measures 20 degrees. How many sides does the polygon have?