Perimeter
Explain the difference between calculating area of a rectangle versus area of a triangle.
Area of a rectangle = length x width
Area of a triangle = 1/2 x length x width
A cuboid has
length = 10 cm
width = 12 cm
height = 5 cm
What is its volume?
600 cm3
A triangle has base 12 and height 4. What is its area?
24
(1/2 x 12 x 4)
A square-based pyramid has how many edges?
8 edges
(4 around the base and 4 slanted edges)
If a cube has a volume of 27 m3, how long is each edge?
3 m
(since 3x3x3 = 27)
A square has 9 cm sides. What are the area and perimeter of the square?
What is 81 cm2 and 36 cm?