We have no idea where the points D, E, and F are.
A sketch would have really helped us.
The answer is 76 degrees APEX
An angle with a measure of 180 degrees will look like a straight line with the vertex being a point in the center. Since a complete circle is 360 degrees, opening an angle to 180 degrees traces out exactly half a circle.
96 TM!!!
Center.
Center point
... center of the circle.
An angle with a measure of 180 degrees will look like a straight line with the vertex being a point in the center. Since a complete circle is 360 degrees, opening an angle to 180 degrees traces out exactly half a circle.
measure it
Step 1: Measure the center point of the circle Step 2: Draw a STRAIGHT line from the center point to the edge of circle (this can be anywhere) Step 3: The length between the center point and the circle itself is your radius. An easier way to measure this is measuring the length or width from your circle and divide it by 2.
exactly three times as far from point A as they are from point B?
96 TM!!!
The idea is that three lines coming out from the center point of a circle (three radii) form three angles -- imagine, for an easy example, the Mercedes-Benz logo. Then the question is: if two of the angles each measure 130 degrees, what does the third angle measure? Well, the first two together measure 260 degrees. So, how many degrees in a circle overall are left, once 260 are taken out? There are 360 degrees in a circle, so the answer is 100.
The point from which the circle is drawn IS the center.
The line from the center of a circle to a point on the circle is the radius.
100 degrees
Assuming the measure of the arc refers to the angle at the centre of the circle, the answer is 180 - 150 = 30 degrees.
The radius is the distance between the center of a circle and a point on the circle
The line from the center of a circle to a point on the circle is the radius.