Why is effective maintenance crucial in facilities and

If O is circumcentre of acute angled triangle ABC, if ∠  BOC = 150˚  then  ∠ BAC = ?

The 2^nd approximation to a root of the equation x2-x-1-0 in the interval (1, 2) by Bisection method will be:

In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find out the value of cos A?

If I is the incentre of ΔABC , if  ∠ BIC = 125⁰  , then what is the measure of  ∠ BAC?

In the given figure. ‘O' is the centre of the circle and ∠BCA = 50°. The value of ∠BDA is:

The length of a tangent from a point A at a distance 5 cms. from the centre of the circle is 4 cms. Radius of the circle is

In the given figure CD is parallel to AB then ∠y is?

In the given figure, O is centre of the circle. Circle has 3 tangents. If ∠ QPR = 45 ⁰ , then what is the value (in degrees) of ∠ QOR ?

If O is circumcentre of acute angled triangle ABC, if ∠  BOC = 100˚  then  ∠ BAC = ?