Waec Model Questions Vol1 2020 Mathematics Question 30

Practice objective / multiple choice question 30 from the 2020 Waec Model Questions Vol1 Mathematics examination.

Waec Model Questions Vol1 2020 Mathematics Objective / Multiple Choice Hard Difficulty
Question 30 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • MATHEMATICS • objective

A solid consists of a right circular cylinder of radius 5 cm and height 12 cm, topped by a right circular cone of the same base radius and height 8 cm. A vertical cylindrical hole of radius 2 cm is drilled through the centre of the solid from the top of the cone to the bottom of the cylinder. Find the total surface area of the solid (including the inner surface of the hole) but excluding the base that rests on the horizontal plane.

Answer Options

Correct Answer A. π(200 + \(5√89)\) \(cm^2\)
B. π(200 + \(4√89)\) \(cm^2\)
C. π(180 + \(5√89)\) \(cm^2\)
D. π(200 + \(5√90)\) \(cm^2\)
Correct Answer
A
Correct Option:
π(200 + \(5√89)\) \(cm^2\)

About This Question

This is Waec Model Questions Vol1 2020 Mathematics Question 30. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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