Question 16
Mensuration of Plane ShapesA square of cardboard is taped at the perimeter by a piece of ribbon 20cm long. What is the area of the board?
- A.20sq.cm
- B.25sq.cm
- C.36sq.cm
- D.100sq.cm
- E.16sq.cm.
Show the answer and explanation
Answer: B (25sq.cm)
Explanation
The perimeter is 20cm, so each side is 5cm and the area is 5 × 5 = 25sq.cm.