What are the best online coaching sites for MAT and CAT?

You can refer Quantitative Aptitude for Competitive Examinations by R.S. Aggarwal and Quantitative Aptitude Quantum CAT by Sarvesh Verma along with previous years' CAT question papers, for cracking CAT Mensuration questions.

Yes, Mensuration is an important topic for CAT Quantitative Aptitude. If forms a good chunk of Geometry questions.

About 2-4 questions can be asked from Mensuration section in CAT. Candidates can must practice this topic extensively.

CAT Coaching centres that provide weekend batches in Noida are Career Launcher (Sector 62, Sector 15/2), IMS (Sector 18, Sector 62) and TIME (Sector 15).

To choose the best CAT Coaching institute, candidates must consider the following points: