Start learning →

As per your syllabus, what is the formula for the perimeter of a RECTANGLE with length a units and width b units?

A½(a + b) units
Ba² + b² units
Cab units
D2(a + b) units
Answer & Solution
Correct answer: D. 2(a + b) units
Rectangle perimeter = 2(a+b). The other options confuse perimeter with area or other formulas.
Practise this question with Quill — CBSE Class 9 →

Keep practising C9perimeter

Browse all C9perimeter questions for CBSE Class 9, or explore more Mathematics topics.

Start a C9perimeter lesson →
Related questions
Perimeter and area bingoOrder the steps of Heron's formulaComplete the circle factsPick the formulaTrue or false about measuring spacePerimeter and area numbersPerimeter or area?Match the perimeter formula