Question
If cos A = 1/2 , 0 ≤ A ≤ 90°, then what is the
value of sin (180 – A)?Solution
The correct answer is B
Find the radius of the sphere whose volume is 562.5π cm3
What will be inradius of a right angle triangle whose base is 11 cm & height is 60 cm ?

The lengths of three medians in a triangles are 15 cm, 20 cm, 25 cm. What is the area of that traingle (in cm 2 )?
If the volume of a cube is 64cm³, then the diagonal of cube is
In a triangle ABC, AB = 13 cm, BC = 14 cm, and AC = 15 cm. Find the area of the triangle and the length of the altitude from vertex A to side BC.
If I is the incentre of ΔABC , if ∠ BAC = 450 , then what is the measure of ∠ BIC?
In the figure given below, AC = 16 cm and BF = 5 cm. If AE:CE = 5:3, then find the perimeter of ΔABC.
If I is the incentre of ΔABC , if ∠ BAC = 700 , then what is the measure of ∠ BIC?
In a circle, the chord AB is 12 cm, and the perpendicular from the center O to the chord AB bisects it at point P. If OP = 5 cm, what is the radius of t...