Hint: What type of polygon is the bathroom? Bell Work The 3 in the diagram represents 30 ft in real life. Hint: What type of polygon is the bathroom? What is the scale for this blueprint What is the ACTUAL area of the bedroom 3 in Bathroom 1.5 in 2 in Bedroom

Area & Circumference Objective: TLW a) Apply the given formula to find the area of a circle, the circumference of a circle, or the volume of a rectangular solid.

Radius & Diameter Radius (r): the line HALFWAY through the circle   Radius & Diameter Radius (r): the line HALFWAY through the circle Diameter (d): the line splitting the circle in half radius diameter

Diameter vs Radius True or false Question 1: The Diameter is half of the radius? T or F Question 2: If the diameter of a circle is 30 cm. The radius is 15 cm.

Radius & Diameter 6 ¼ cm 5 ft. 3.2 m r =_____ d= ____ r =_____ d= ____ 2 ¼ in 6 ¼ cm r =_____ d= ____ r =_____ d= ____

AREA diameter CIRCUMFERENCE (C) : the measurement AROUND the circle.   CIRCUMFERENCE (C) : the measurement AROUND the circle. C = 2πr C i r c u m f e n diameter AREA (A): the measurement INSIDE the circle. A = π r² AREA radius

Area & Circumference 9 ¾ cm 6.5 m 18 ft. r =____ d =_____ C= ____ 4 ½ in 9 ¾ cm r =____ d =_____ C= ____ A= ____ r =____ d =_____ C= ____ A= ____

Area & Circumference r =____ d = 5cm C= ____ A= ____ r =____ d =_4.2ft__ C= ____ A= ____ r =_6.8in___ d =_____ C= ____ A= ____ r =_10m___ d =_____ C= ____ A= ____

Area & Circumference AREA diameter radius Around a circle Inside a circle Line halfway through a circle Line to the end of the circle C i r c u m f e n diameter