Rectangle sides from a ratio
The length and breadth of a rectangle are in a given ratio, such as 6 : 4, and its area is known. The student works out both sides.
The ratio isn't always in its simplest form, so it helps to simplify first and then find the scale that gives the area.
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What changes each time
- A new ratio every time
- Areas in cm²
- Two answers: length and breadth
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)
- Missing side of a rectangle (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)