Neco Model Questions Vol1 2018 Mathematics Question 5

Practice objective / multiple choice question 5 from the 2018 Neco Model Questions Vol1 Mathematics examination.

Neco Model Questions Vol1 2018 Mathematics Objective / Multiple Choice Hard Difficulty

Question 5 NECO_MODEL_QUESTIONS_VOL1 • 2018 • MATHEMATICS • objective

In triangle \(ABC\) the side lengths are \(AB = 13\) cm, \(AC = 15\) cm and \(BC = 14\) cm. The incircle touches side \(BC\) at point \(D\) such that \(BD = 6\) cm. (i) Find the radius \(r\) of the incircle. (ii) Determine the distance from the incenter \(I\) to vertex \(A\).

Answer Options

Correct Answer A. r = 4 cm; IA = \sqrt{65} cm

B. r = 5 cm; IA = \sqrt{61} cm

C. r = 3 cm; IA = \sqrt{73} cm

D. r = 4 cm; IA = \sqrt{70} cm

Correct Answer

Correct Option:

r = 4 cm; IA = \sqrt{65} cm

About This Question

This is Neco Model Questions Vol1 2018 Mathematics Question 5. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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