Classification of Polygons
What do you call a polygon with 5 sides?
Pentagon
Find the perimeter of a square with a side length of 5 cm.
20cm
What is the area of a rectangle with a length of 8 ft and a width of 5 ft?
40 ft2
A shape is made of two 4cmx4cm squares side-by-side. What is the total area?
32cm2
What is the formula for the Area of a Square?
A = s x s OR
A = (s)2
This type of polygon has all sides and all angles equal.
Regular Polygon
Find the perimeter of a rectangle with length 10m and width 4m.
28m
Calculate the area of a triangle with a base of 10 inches and a height of 6 inches.
30 inches2
An L-shaped figure is made of a 8mm x 6mm rectangle and a 7mm x 4mm rectangle. What is the total area?
76mm2
What is the formula for Area of a Rectangle?
A = l x w
A polygon with 8 sides is called this.
Octagon
A regular hexagon has a side of 7 inches. What is its perimeter?
42 inches
A square has a side of 9 mm. What is its area?
81 mm2
Find the area of a shape formed by a 6m x 4m rectangle with a 2m x 2m square cut out of the top right corner.
20m2
What is the formula for Area of a triangle?
A = 1/2 b x h OR
A = bxh
2
True or False: A circle is a polygon.
False(it doesn't have sides, it's a curved shape)
A rectangle has a perimeter of 48 mm. If it's width is 8mm, how much is it's length?
16mm
Find the area of a parallelogram with a base of 12 m and a height of 7 m.
84 m2
A compound shape consists of a square with side 4cm and a right angled triangle (base 4cm, height 3cm) attached. What is the Total area?
22cm2
What is the formula for finding the area of a Semi Circle?
A = π r2
2
Name a polygon whose sides are all equal and its interior angles are exactly 90 degrees
Square
An isosceles triangle has a perimeter of 38 cm. If the base is 14cm. How much does each of the equal sides measure
each equal side measures 12 cm
What is the area of a trapezoid with bases 4 cm and 6 cm, and a height of 5 cm?
25 cm2
A house-shape has a 10m x 10m square base and a triangular roof with a height of 5m. What is the Total area?
125m2
What is the formula for the area of a Trapezoid or Trapezium?
A = 1/2 (a + b) h OR
A = (a + b) h
2