Neco 2019 Mathematics Question 9

Practice objective / multiple choice question 9 from the 2019 Neco Mathematics examination.

Neco 2019 Mathematics Objective / Multiple Choice Hard Difficulty
Question 9 NECO • 2019 • MATHEMATICS • objective

A frustum of a right circular cone has a lower base radius of \( 10 \) cm, a slant height of \( 13 \) cm and a total surface area (including both bases) of \( 800 \) cm\(^2\). Find the radius of the upper base (to one decimal place).

Answer Options

Correct Answer A. 1.7
B. 2.5
C. 0.9
D. 3.1
Correct Answer
A
Correct Option:
1.7

About This Question

This is Neco 2019 Mathematics Question 9. It is one of the objective questions from the 2019 Neco Mathematics examination.

Difficulty level: Hard .

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