Height of a light house is 65 m. angles of elevation and depression of top and foot of a radar mast are 52° and 30° respectively. height of radar mast is
Process by which plants absorbs sunlight and produces their food is called
From top of mountain 68 m high, angle of depression of two boats due east of it are 52° and 26° respectively. distance between ships is
In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then C is
If sin A is 0.865 then value of angle A (four significant figures) is
A ladder leans against wall at point B (window end) from a ground level and makes an angle horizontally at 52°. height of ladder is 15 m. When same ladder leans above point B at point A (window start) and makes an angle of 85° horizontally. distance between point A and point B is
Considering a right-angled triangle ABC, if opposite side is 'x' and adjacent side of triangle is equal to 20 then A 53° is
In triangle ABC, if angle A = 89°, b = 13.5 cm and a = 17 cm then angle B is
In triangle ABC, if angle B = 60°, b = 11 cm and c = 8.7 cm then angle A and length of 'a' is
Consider a right angle triangle XYZ, XY is 17 and XZ is supposed as unknown number 'a' then X 54.26° up to three significant figures is