Neco Model Questions Vol1 2025 Mathematics Question 25

Practice objective / multiple choice question 25 from the 2025 Neco Model Questions Vol1 Mathematics examination.

Neco Model Questions Vol1 2025 Mathematics Objective / Multiple Choice Hard Difficulty
Question 25 NECO_MODEL_QUESTIONS_VOL1 • 2025 • MATHEMATICS • objective

In triangle \(ABC\), \(AB = 12\) cm, \(AC = 9\) cm and \(\angle BAC = 60^{\circ}\). The internal bisector of \(\angle BAC\) meets side \(BC\) at \(D\) and \(BD = 5\) cm. (i) Find the length of \(DC\). (ii) Find the radius of the circumcircle of \(\triangle ABC\). Give your answer for the radius correct to two decimal places.

Answer Options

A. DC = 3.20 cm, R ≈ 6.50 cm
B. DC = 4.00 cm, R ≈ 6.00 cm
C. DC = 4.25 cm, R ≈ 5.80 cm
Correct Answer D. DC = 3.75 cm, R ≈ 6.24 cm
Correct Answer
D
Correct Option:
DC = 3.75 cm, R ≈ 6.24 cm

About This Question

This is Neco Model Questions Vol1 2025 Mathematics Question 25. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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