Area/ Perimeter
What is the definition of area?
The number of square units inside a shape.
The formula for calculating the area of a triangle is
Area= Base X Height / 2
What is the formula for calculating the area of a parallelogram?
A= BxH
A number with more than 2 factors are called
Composite numbers
That is the divisibility rule for 2?
A number is divisible by 2 if it ends in 0,2,4,6,8
What is the formula for calculating the area of a rectangle?
A= LxW
Why do you divide the triangle formula by 2?
Because two triangles make a rectangle/square
A parallelogram has a base of 8m and a height of 4m. What is the area of the parallelogram?
32m2
A number with exactly 2 factors is called
A prime number
A number is divisible by 3 if?
You add all the digits and they can be divided by 3
What is the formula for calculating the perimeter of a rectangle?
P=2L + 2W
What is the area of a triangle with a base of 7cm and a height of 4cm?
14cm2
A parallelogram has a height of 5cm, side length of 6cm and a base of 7cm. What is the area of the parallelogram?
35cm2
A number with an odd number of factors is called?
A Perfect Square
A number is divisible by 9 if?
You add all the digits and they are divisible by 9
Ms.MacDonnell is rearranging her Livingroom. What does she need to calculate to ensure that her furniture will fit?
Area
A triangle has a base of 12mm and an area of 144mm2, what is the height of the triangle?
24mm
A parallelogram has the following measurements: base of 12m, side of 6m, and height of 5m. What is the area of the parallelogram?
60m2
The following number is divisible by which numbers? (list them all)
12,402
2, 3, 6, 9
A number is divisible by 2, 5 and 10 if?
The number ends in a 0
Ms.MacDonnell helped her sister build a fence in the spring. What did they need to calculate to ensure they bought enough lumber?
Perimeter
A triangle has a height of 9m and an area of 108m2. What is the length of the base?
24m
A parallelogram has an area of 66km2. The height is 6km. What is the length of the base?
11km
The following number is divisible by which numbers? (list them all)
8430
2,3,5,6,10
A number is divisible by 6 if?
the number is divisible by 2 and 3