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If O is the orthocentre of ΔABC , if ∠ BOC = 120 ⁰ then what is the measure of  ∠ BAC?

The length of the each side of an equilateral triangle is 10.5 cm. The area of incircle, (cm ² ) is

The perimeter of a rectangular field is 240 meters, and its length is 20% more than its breadth. What is the area of the field?

Angles of a triangle are in the ratio 1 : 2 : 3. Find the measure of the largest angle.

What will be circumradius of an equilateral triangle of side 6 cm?

The perimeter of a rectangle is 100 m, and its diagonal is 41 m. Find the area of the rectangle.

The area of the largest triangle inscribed in a semi-circle of radius R is-

The area of an equilateral triangle is 4√3 sq m. Its perimeter is