Answer:
Part a) The measure of the sum of all angles in a regular dodecagon is equal to 1,800 degrees
Part b) The measure of one of its interiors angles is 150 degrees
Part c) The measure of one of its exterior angles is 30 degrees
Step-by-step explanation:
Part a) What is the measure of the sum of all angles in a regular dodecagon (12 sides)
we know that
The formula to calculate the sum of the interior angles in a regular polygon is equal to
where
n is the number of sides of regular polygon
In this problem a regular dodecagon has n=12 sides
substitute
Part b) What is the measure of one of its interiors angles?
To find out the measure of one of its interior angles, divide the sum of all angles by the number of sides
Part c) What is the measure of one of its exterior angles?
we know that
The sum of one interior angle and its corresponding exterior angle must be equal to 180 degrees
Let
x ---> the measure of one exterior angle
solve for x
-4+2= -2p and -2+3=1
so the answer is -2p+1
I don't know if i'm right but I think the first question is 5 inches, the second question is 8 inches, the third question is 24 inches because there are three blocks and each are 8 inches so 8 x 3 = 24, and the last question is 45 inches because there are 9 bricks each 5 inches on the top so 9 x 5 = 45. (again I am not sure if this is correct but it is what I think)
Answer:
cero que la pregunta es el numero cuatorce
Step-by-step explanation:
8 x 5 = 40
40 - 40% = 24
24 + 6% sales tax = 25.44