Area and Perimeter of L-Shapes
A free printable area and perimeter of l-shapes worksheet with an answer key. Split each shape into two rectangles to find the area. Add all six sides for the perimeter. Perfect for 4th grade practice at home or in class.
- Size
- US Letter (8.5 × 11 in), fits A4
- 2 pages: the worksheet and its answer key
- Level
- Grade 4
- License
- Free for personal & classroom use
About this worksheet
A free printable area and perimeter of l-shapes worksheet with an answer key. Split each shape into two rectangles to find the area. Add all six sides for the perimeter. Expect it to take fourth graders about 15 to 20 minutes with careful work. Measure a few things at home too, like a spoon, a shoe or a toy car.
Answer key at a glance
1) 6 cm 7 cm 9 cm 3 cm 4 cm 3 cm Area = 51 sq cm Perimeter = 32 cm; 2) 7 cm 8 cm 10 cm 6 cm 2 cm 3 cm Area = 74 sq cm Perimeter = 36 cm; 3) 8 cm 9 cm 12 cm 3 cm 6 cm 4 cm Area = 84 sq cm Perimeter = 42 cm; 4) 5 cm 10 cm 9 cm 8 cm 2 cm 4 cm Area = 82 sq cm Perimeter = 38 cm.
Tips for using it
- Line the object up with the 0 on the ruler, not with the end of the ruler.
- Guess first, then measure: kids get better at estimating with every try.
- Perimeter: add all the sides. For a rectangle, double the length plus the width.
- Area: multiply length by width and write 'square' units.
Printing tips
Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the worksheet and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. The PNG shows page 1 only. Free for personal, family and classroom use.
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