MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry
Problem
In a right-angled triangle ABC, ∠B = 90°. The lengths of the three sides are not given.
(i) With reference to the acute angle ∠A, name the side that is:
(a) opposite to the angle
(b) adjacent to the angle
(c) the hypotenuse.
(ii) With reference to the acute angle ∠C, name the side that is:
(a) opposite to the angle
(b) adjacent to the angle
(c) the hypotenuse.
(iii) Give a brief explanation, in your own words, of why the same side cannot be both “opposite” and “adjacent” for a single acute angle in a right-angled triangle.