The length and breadth of a rectangle are 12 cm and 5 cm respectively. What must be the length of its diagonal (in cm )? - Quantitative Aptitude MCQ Competitive Exam 2026 | ExamTest.live

mediumMCQCompetitive Exam2026Quantitative Aptitude

1 mark

The length and breadth of a rectangle are 12 cm and 5 cm respectively. What must be the length of its diagonal (in cm)?

Solution & Step-by-step Explanation

The diagonal d of a rectangle with length l and breadth b is given by Pythagoras' theorem: d = l^{2} + b^{2} d = 1 2^{2} + 5^{2} d = 144 + 25 = 169 = 13 cm

Try it yourself before checking the explanation above.

The length and breadth of a rectangle are 12 cm and 5 cm respectively. What must be the length of its diagonal (in cm)?

13

26

15

30

Practice with timed mock tests and track your performance across Quantitative Aptitude.