What is a composite figure?
A figure made from two or more basic geometric figures (or shapes)
What is the area of a circle if:
the radius = 14 m
615.75cm^2
Find the area AND perimeter of this composite shape:
Area = 6 cm2
Perimeter = 15.5 cm
What are the names of the category of shapes that we calculate the area of?
What shapes would you divide this composite shape into?
One Rectangle and One Triangle
What is the area of a circle if:
the diameter = 18 m
254.47m^2
Area of a triangle with a base of 16mm and a height of 9mm?
72mm2
Name the line segment that cuts a circle in half
Diameter
How do you find the area of a composite figure?
Find the area of each figure (or shape) and add them together.
Which side length in the shape is NOT needed to calculate the area of this triangle? Calculate the area of this triangle.
Side not needed: 17
A = 60 squared units
Find the area AND perimeter of this shape:
Area: 78 cm2
Perimeter: 44 cm
How do you calculate the diameter when given the radius?
Multiply radius by 2
True or False? When calculating the area of a composite figures, side lengths can be in any unit of measurement
False
Calculate the area of the shape below
A = 25.13cm^2
Find the area of this regular trapezoid:
48in2
The outside measurement of a circle
Circumference
True or False? A composite figure can have a maximum of 3 shapes.
False
The radius for this circle is 45m, what is the circumference?
What is 282.6m
Find the area and perimeter of this shape.
Area = 140 cm2
Perimeter = 55cm
How many degrees are in a full rotation from a point outside a circle, based around the centre?
360 degrees.