1. A rectangle has a length of 6 cm and a width of 4 cm. Find the area and perimeter of the rectangle.
Area = length x width
Area = 6 cm x 4 cm
Area = 24 cm^2
Perimeter = 2(length + width)
Perimeter = 2(6 cm + 4 cm)
Perimeter = 2(10 cm)
Perimeter = 20 cm
2. A square has a side length of 8 cm. Find the area and perimeter of the square.
Area = side length x side length
Area = 8 cm x 8 cm
Area = 64 cm^2
Perimeter = 4 x side length
Perimeter = 4 x 8 cm
Perimeter = 32 cm
3. A circle has a radius of 5 cm. Find the area and circumference of the circle. (Use 3.14 for π)
Area = π x radius^2
Area = 3.14 x 5 cm^2
Area = 78.5 cm^2
Circumference = 2 x π x radius
Circumference = 2 x 3.14 x 5 cm
Circumference = 31.4 cm
4. A triangle has a base of 10 cm and a height of 8 cm. Find the area and perimeter of the triangle.
Area = 0.5 x base x height
Area = 0.5 x 10 cm x 8 cm
Area = 40 cm^2
Perimeter = sum of all three sides
Perimeter = 10 cm + 8 cm + hypotenuse
Perimeter = 18 cm + hypotenuse
5. A pentagon has a side length of 6 cm. Find the area and perimeter of the pentagon.
To find the area and perimeter of a pentagon, more information is needed about the shape of the pentagon. The side length alone is not sufficient to calculate the area and perimeter.
Area and Perimeter Unit Test Anwers
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