Find the measure of one interior angle of a regular 21-gon.

Mathematics

2 answers:

ExtremeBDS [4]2 years ago

5 0

C step-by-step the coordinate of that is pretty simple to say but hard at the same time

lesya [120]2 years ago

4 0

Measure of sum of interior angles formula (where “n” is number of sides): (n-2)180

(21-2)180
=3420

3420 is the measure of the sum of a regular 21-gon, and to find the measure of only one angle, we need to divide the sum by the number of sides, so
3420/21

= 162.9

the answer is B

You might be interested in

Which inequality represents all values of x for which the product below is defined

zavuch27 [327]

Answer:

(-∞, -2) ∪ (0, ∞)

Step-by-step explanation:

Multiply together the (7x) and the (x+2), obtaining 7x^2 + 14x. This is the correct argument (input) to Answer A.

Since the domain of the square root function includes "all real numbers equal to or greater than 0," we set 7x^2 + 14x = to 0. This factors to the original 7x*(x+2), set equal to 0. The roots are 0 and -2.

These two values create three intervals: (-∞, -2), (-2, 0) and (0, ∞).

Choosing test numbers, one from each interval: {-5, -1, 1}.

7x^2 + 14x is + at x = -5, - at x = -1, and + at x = 1.

Thus, the domain of this function is (-∞, -2) ∪ (0, ∞). In other words, the product shown is defined on (-∞, -2) ∪ (0, ∞).

5 0

3 years ago

Two increased by three equals the quotient of ten and two.

Marrrta [24]

Answer: 5 = 5 or true its an equal equation.

Step-by-step explanation:

The equation would look like this: 2 + 3 = 10 divided by 2. This equation is extremely easy it turns out to be 5 = 5 because 2 + 3 = 5 and 10 divided by 2 is 5 so your final answer is 5 = 5 or if its a true or false question, the answer is true it is an equal equation. Please mark me brainliest. -Cyrusskywalker

5 0

3 years ago

-3(-7) answer to this please

Naddika [18.5K]

Answer:

Step-by-step explanation:

Negative times negative is positive.

-3(-7) = 21

8 0

3 years ago

Rational numbers are numbers that can be written as the ______ of _____. What are the blanks?

BARSIC [14]