Formulas
Which shape uses the formula: A = l × w
Rectangle or square
Find the area of a rectangle with length 6 and width 4
24 units2
Find the perimeter of a rectangle with length 2 and width 1
6 units
A quadrilateral with 4 equal sides and 4 right angles
Square
A garden is 5 by 7 meters. What is the area?
35 m2
Which shape uses the formula A= b x h
Parallelogram
Find the area of a parallelogram with a base of 9 and a height of 3.
27 units2
Find the perimeter of a square with all four side lengths 3
12 units
A shape with exactly one pair of parallel sides
Trapezoid
A parallelogram has an area of 30, what could the base and height of this shape be?
15 and 2
6 and 5
Which shape uses the formula: A = ½ × b × h
Triangle
Find the area of a trapezoid with bases 6 and 10 and height 4
32 units2
Find the perimeter of a rectangle with length 9 and width 4
26 unites
A parallelogram with all sides equal
Rhombus
A triangular flag has base 8 and height 6. What is the area?
24 units²
Which shape uses the formula: A = ½ × h x (b₁ + b₂)
Trapezoid
Find the area of a triangle with base 10 and height 5
25 units2
Find the perimeter of a square with side length 5
20 units
A quadrilateral with diagonals that bisect each other at right angles
Rhombus or Kite
A trapezoid has bases 12 and 18 and height 5. What is the area?
75 units²
Which shape uses the formula: A = ½ × d₁ × d₂
Kite or Rhombus
A rhombus has diagonals of 12 and 8. What is the area?
48 units2
Find the perimeter of a rectangle with length 25 and width 12
74 units
A parallelogram with four right angles
Rectangle or square
A rectangular field is 20 by 15. A path 2 units wide goes around it. Is the total area with the path larger or smaller than 300? Explain why.
Larger because the area of the field is 300 so the path adds more area to that.