- #1
Turquoise
- 11
- 0
Homework Statement
http://i41.tinypic.com/35mno6v.jpg
2. The attempt at a solution
So far, I found out that angle 4 and 5 is 55, because angle D is 110.. but I don't know if that's right. Please help!
Mark44 said:One thing I haven't used is the statement that AB is tangent at B. I don't understand why this is significant or how it ties into this problem.
A circle is a two-dimensional shape that is formed by a collection of points that are all equidistant from a center point. It is a closed shape with no corners or edges.
The formula for calculating the area of a circle is A = πr², where A is the area and r is the radius of the circle. π (pi) is a constant value of approximately 3.14.
The circumference of a circle is the distance around its edge. It can be calculated using the formula C = 2πr, where C is the circumference and r is the radius of the circle. Again, π (pi) is a constant value of approximately 3.14.
A regular polygon is a polygon with all sides and angles equal. An irregular polygon is a polygon with sides and angles that are not all equal. Regular polygons are typically named by the number of sides they have, such as a triangle (3 sides), square (4 sides), or pentagon (5 sides).
The sum of the interior angles of a polygon is determined by the formula (n-2)180°, where n is the number of sides of the polygon. To find the measure of each angle, divide the sum by the number of angles in the polygon.