Waec Model Questions Vol1 2021 Mathematics Question 21

Practice objective / multiple choice question 21 from the 2021 Waec Model Questions Vol1 Mathematics examination.

Waec Model Questions Vol1 2021 Mathematics Objective / Multiple Choice Hard Difficulty
Question 21 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • MATHEMATICS • objective

A solid consists of a right circular cylinder of radius r cm and height h cm, with a right circular cone of the same radius placed on top of the cylinder. The height of the cone equals the radius r. The total volume of the solid is 500π cm³. Find the total curved (lateral) surface area of the solid, expressed in terms of π.

Answer Options

A. (560\/3 + 25\\sqrt{2})\\pi cm^2
B. (550\/3 + 25\\sqrt{3})\\pi cm^2
C. (550\/3 + 30\\sqrt{2})\\pi cm^2
Correct Answer D. (550/3 + 25\sqrt{2})\pi cm^2
Correct Answer
D
Correct Option:
(550/3 + 25\sqrt{2})\pi cm^2

About This Question

This is Waec Model Questions Vol1 2021 Mathematics Question 21. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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