# Trigonometry and Trigonometry Formulas Multiple Choice Questions Test 1 pdf Download

Practice math quiz 1 on trigonometry and trigonometry formulas MCQs, grade 8 cosine rule multiple choice questions. Free cosine rule guide has math worksheet with answering options a^{3} + c^{3} - 3ab cos a, a^{2} - c^{2} + 2ab cos a, a^{2} + c^{2} - 2ac cos b and a^{2} - c^{2} 4bc cos a of multiple choice questions (MCQ) with cosine rule quiz as for cosine rule of any triangle abc, b^{2} is equal to for exam prep. Study to learn cosine rule quiz to attempt multiple choice questions based test.

## MCQs on Trigonometry and Trigonometry Formulas - Quiz 1

MCQ. For Cosine Rule of any triangle ABC, b^{2} is equal to

- a
^{2}- c^{2}+ 2ab cos A - a
^{3}+ c^{3}- 3ab cos A - a
^{2}+ c^{2}- 2ac cos B - a
^{2}- c^{2}4bc cos A

C

MCQ. For Cosine Rule of any triangle ABC, c^{2} is equal to

- c
^{2}+ a^{2}+ 2ac cos C - a
^{2}+ b^{2}- 2ab cos C - a
^{2}+ b^{2}+ 2ab cos A - a
^{2}- b^{2}+ 2ab sin A

B

MCQ. In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is

- 69°
- 66°
- 60°
- 63°

C

MCQ. Considering Cosine Rule of any triangle ABC, possible measures of angle A includes

- angle A is obtuse
- angle A is acute
- angle A is right-angle
- all of above

D

MCQ. Sine rule for a triangle states that

- a/sin A = b/sin B = c/sin C
- sin A/a = sin B/b = sin C/c
- a/sin A + b/sin B + c/sin C
- 2a/sin A = 2b/sin B = 2c/sin C

B