The sum of the angles in a pentagon is 540°.
This means that each angle is 108°.
Inside you pentagon, a triangle is drawn. This triangle is isosceles, because the corners are on the points of the regular pentagon. You know that angle C is 108°.
Angles in a triangle add up to 180°.
B and D will be the same size as this is isosceles.
180°-108° = 72°
This is B and D. You only need one of these, so you divide by 2.
The answer is 36°.
Hope this helps :)
Answer: 8
<u>Step-by-step explanation:</u>
The formula for the sum of the angles of a polynomial is:
1080 = 180(n - 2)
1080 = 180n - 360
1440 = 180n
8 = n
Answer:
Explanation:
49-20=29 blue counters
There’s a 29/49 chance that the counter will be blue
Answer:
lala lala 4 yes did that work
Using the equations for tangent and secant lines:
Let the unknown length of the line inside the circle = y
6^2 = 3 x (y+3)
Simplify:
36 = 3y+9
Subtract 9 from both sides:
27 =3y
Divide both sides by 3:
Y = 9
Now add to get x:
X = 9 + 3 = 12
X = 12
