Missing side of a rectangle
One side of a rectangle is given, along with either its perimeter or its area. The student works out the other side.
From the perimeter, the known side is taken off twice and what's left is halved; from the area, it's a division. Half the questions give each.
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What changes each time
- Perimeter or area given
- Length or breadth missing
- A new rectangle every time
More area, perimeter and volume practice
- Area by counting squares (Grade 2)
- Area and perimeter of a square (Grade 3)
- Area and perimeter of a rectangle (Grade 3)
- Area with half squares (Grade 3)
- Area of an L-shape (Grade 3)
- Perimeter of an L-shape (Grade 3)
- Draw a rectangle with a given area and perimeter (Grade 3)
- Rectangle sides from a ratio (Grade 4)
- Area of a right triangle (Grade 4)
- Area of an isosceles triangle (Grade 4)
- Area of a scalene triangle (Grade 4)
- Area of an irregular polygon (Grade 5)
- Missing triangle in a square (Grade 5)
- Volume by counting cubes (Grade 5)