alleryA square of side a has perimeter:
A6a
B4a
C2a
D3a
Answer & Solution
Correct answer: B. 4a
1. A square has four sides, all equal.
2. Each of them is a units long.
3. So the perimeter is 4a units.
4. The answer is 4a.
_Source: syllabus Mathematics, Ch 6 'Measuring Space: Perimeter and Area'_
Keep practising Mensuration: Perimeter and Area
Browse all Mensuration: Perimeter and Area questions for CBSE Class 9, or explore more Mathematics topics.
Related questions
Match Heron's formula components for triangle area:Match each hemisphere surface area component (radius r):Match each circular solid with its volume formula:Match each circular 3D solid with its curved surface area (CSA) formula:Spot the one that does not fitFill the gaps on surface areasFind a cone's curved surfacePart of a cone or a sphere