Topic: Circles and Area
HF 336
Page: 58
L8.3 p.334
Level: Apply
Do: Use the formula for area of a circle to solve real-life problems.
Essential Question: How can you find the area of a semicircle?
Questions:
Notes from video #1
Notes on Area of a Circle; Key Idea p.334.
A) Find Area of a Circle
1) Find the area of the circle.
Use 3.14 for π.
2) Find the area of the circle. Use 3.14 for π.
Questions:
3) Find the area of the circle. Use
for π.
4) Find the area of the circle. Use 3.14 for π.
5) Find the area of the circle. Use 3.14 for π.
B) Find Area of Semicircle or Part of a Circle
6) Find the area of the semicircle. Use 3.14 for pi.
Questions:
7) Find the area of the semicircle. Use 3.14 for pi.
B) Find Area of Sector of a Circle
8) Find the area of the sector.
Use 3.14 for pi.
Questions:
8) Find the area of the sector.
Use 3.14 for pi.
8) Find the distance traveled if the tire rotates
a) one time? B) 5 Times or c) how many
rotations to travel 1 mile? (5280 ft. per mile)
23 in.
Summary: