Free Fabric Panel With a Notched Corner Area Worksheet gives learners a diagram, one worked example and five questions. The student sheet leaves space to show work. A second printable page gives the steps for each answer.
Start with the model
Find the area of the whole rectangle. Subtract the missing corner, or add two rectangles that cover the shaded part.
Outer width 110 cm, outer height 70 cm, upper-right cutout width 40 cm and depth 30 cm.
Worked example
The outer rectangle measures 110 cm by 70 cm. Its area is 110 × 70 = 7700 cm².
Ask the learner to point to the information used in the example. When they move on to the exercises, have them record the quantity, unit or label that each step represents.
Practice questions
- Find the missing corner area.
- Find the shaded fabric area.
- Find the length of the short top edge.
- Find the shaded area by adding the left rectangle and the bottom-right rectangle.
- If the corner became 10 cm deeper at the same width, how much shaded area would disappear?
Separate answer key
- 40 × 30 = 1200 cm².
- 7700 − 1200 = 6500 cm².
- 110 − 40 = 70 cm.
- 70 × 70 + 40 × 40 = 4900 + 1600 = 6500 cm².
- The extra strip is 40 cm by 10 cm, so 400 cm² would disappear.
Download the student sheet and key
Each page has its own Download image and Download PDF controls. Choose US Letter or A4 for the PDF. Match the paper size in the print dialog and check the page edges before printing. The original PNGs are 2550 × 3300 pixels at 300 dpi. The pages are free for personal and classroom use.