Circles
Find the area of a circle with a radius 3cm.
28.27
what is the circumference of a circle with a radius of 21 cm
131.95
What is a semicircle
A semicircle is an arc whose endpoints are the endpoints of a diameter. It has a measure of 18
What is Theorem 1
If two lines intersect, then they intersect in exactly one point.
Find the area of a circle with radius 50
7853.98
What is the circumference of a circle with a radius of 66.78
419.59
What is a Central Angle
An angle whose vertex is the center of a circle
What is theorem 2
Find the area of a circle with radius 27
2290.22
Find the circumference of a circle that has a radius of 1/2
pie
What is A minor arc
It has a measure that is less than 180
What is theorem 3
Equal chords of a circle are equidistant (equal distance) from the centre of the circle
We are given a circle with an area of 314in. Find the radius of the circle. Take π as 3.14.
10in
If a circle has an area of 81pie, what is the circle's circumference?
18pie
What is a cord
the line segment joining two points on a curve
What is theorem 4
The opposite angles in a cyclic quadrilateral add up to In plain terms
To cover a distance of 10 km, a wheel rotates 5000 times. Find the radius of the wheel.
r = 31.82 cm
If a circle has an area of 16pie^2, what is the circumference?
8pie
what is a tangent line
it is a differentiable curve at a point where the slope of the curve equals the slope of a line
What is theorem 5