Home › CBSE Class 9 › mathematics › perimeterandarea › The total length around the border of a closed s…
The total length around the border of a closed shape is called its:
AArea
BPerimeter
CVolume
DRadius
Answer & Solution
Correct answer: B. Perimeter
Perimeter is the distance around the boundary of a shape. A small insect walking once around the border, without turning back, would cover the perimeter. SI unit: metre (or any length unit).
Related questions
Two circles have radii in the ratio 2:3. The ratio of their CIRCUMFERENCES is:A square garden of side 20 m is surrounded by a path of uniform width 1 m on the outside. The area of a triangle with base b and height h is:Around 263 CE, the Chinese mathematician Liu Hui's 'circle-cutting method' approximated π The figure shows a circle with radius r and diameter d marked.
![Circle with radius and dThe area of a rectangle of length 12 cm and width 5 cm is:The circumference of a circle of radius 7 cm (use π ≈ 22/7):The figure shows a labelled rectangle with length L and width W.
![Rectangle diagram (Wik