Neco Model Questions Vol1 2021 Mathematics Question 50

Practice objective / multiple choice question 50 from the 2021 Neco Model Questions Vol1 Mathematics examination.

Neco Model Questions Vol1 2021 Mathematics Objective / Multiple Choice Hard Difficulty
Question 50 NECO_MODEL_QUESTIONS_VOL1 • 2021 • MATHEMATICS • objective

In triangle \(ABC\) the angles are \(\angle A = 40^{\circ}, \angle B = 70^{\circ}, \angle C = 70^{\circ}\) and side \(AB = 12\) cm. Point \(D\) lies on side \(BC\) such that \(BD:DC = 1:2\). Calculate the length of \(AD\) (give your answer in simplest radical form).

Answer Options

Correct Answer A. \sqrt{129} cm (≈ 11.36 cm)
B. \\sqrt{121} cm (≈ 11.00 cm)
C. \\sqrt{144} cm (≈ 12.00 cm)
D. \\sqrt{100} cm (≈ 10.00 cm)
Correct Answer
A
Correct Option:
\sqrt{129} cm (≈ 11.36 cm)

About This Question

This is Neco Model Questions Vol1 2021 Mathematics Question 50. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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