One angle of a triangle is`150^@` and its opposite side 3 centimetre.Find the diameter of its circum circle.

The angle of a right triangle is 30^@ and its hypotenuse is 4cm. What is its area?

The equal sides of an isosceles triangle are 8 centimetres long and the radius of its circumcircle is 5 centirnetes. Calculate the length of its third side.

The perimeter of a rectangle is 42 centimetres and its diảgonal is 15 centimetres. Find the dimensions of the rectangle:

The difference of the length of perpendicular sides of a right triangle is 10 centimetres. Its area is.72 square centimetres. Find the length of the perpendicular sides.

In a circle, the length of an arc of central angle 40^(circ) 'is 3 pi centimetres. What is the perimeter of the circle? What is its radius?

The perimeter of a triangle is 49 centimetres one side is 7 centimetres more than the second side and 5 centimetres less than the third side. Find the three sides.

Diagonal of a rectangle is 12 centimetres in length. The angle made by the diagonal with one of its sides is 30^circ . Find the perimeter and area of the rectangle.

In a right angled triangle, one of the perpendicular sides is 5 centimetres longer than the other and its area is 12 square centimetres. What are the lengths of its sides?

If circles are drawn with each side of a triangle of sides 5 centimetres, 12 centimetres and 13 centimetres, as diametres,then with respect to each circle, where would be the third vertex?

The area of a rectangle is 12 (1)/(2) square centimetres.and the length of one side of its side is. 3 (3)/(4) centimetres. What is the length of the other side?