The formula for the area of a triangle ABC is:
In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then C is
If cos 55° and sin 55° = 0.8 each then answer of 3 cos 125° + 5 sin 125° is
If a = 16.5 cm, angle B = 52° and c = 10 cm then area of ? ABC is
Surface area of hollow cylinder with radius ‘r’ and height ‘h’ is measured by
In ? ABC, angle A = 110° and AC = 2AB. If area of ? ABC is 15.5 cm² then length of AB is
If cosine is 0.8 then value of acute angle is
If a = 9.7 cm, angle B = 64° and c = 8.8 cm then area of ? ABC is
If sine is 0.896 then value of acute angle is
In public library, 30% of books are classified as fiction and remainder as non-fiction. There are total 2400 more non-fiction books than fiction books. number of books in fiction category are