Circles

Directions: What is the longest chord in a circle that has an area of 25π square units? Source: Nanette Johnson

Directions: What is the area of the smallest square that could fit around (circumscribed about) a circle with area 100π square units? Source: Nanette Johnson

Directions: What is the biggest area of a quadrilateral you can fit in a circle that has a circumference of 20π units? Source: Nanette Johnson