Lesson: 10 – 1 Circles and Circumference Geometry Lesson: 10 – 1 Circles and Circumference Objective: Identify and use parts of circles. Solve problems involving the circumference of a circle.
Circle A set of points in a plane equidistant from a given point called the center.
Segments in a Circle Copy
Name the circle, a radius, a chord, and a diameter of the circle.
Radius and Diameter
16 in 7 ft 11 m
Circle Pairs
Circle Pairs Copy all
How can 2 circles intersect?
15 9 Find RC.
Copy formula Circumference The distance around a circle.
Find the circumference of each circle described Find the circumference of each circle described. Round to the nearest hundredth.
Find the diameter and radius of a circle to the nearest hundredth if the circumference is 106.4 mm. First!
Quadrilateral LMNP is inscribed in the circle. Circle K is circumscribed about Quad. LMNP.
Do not plug into a calculator Draw a picture. Find the hypotenuse (diameter). Find the circumference. 9 Do not plug into a calculator since it said “exact”
Homework Pg. 687 1 – 8 all, 10 – 32 E, 50