The picture shows a triangle formed by three tangents to a circle.
. Calculate the length of each tangent from the corner of the triangle to the point of contact.

In the picture a triangle is formed by two mutually perpendicular tangents to a circle and a third tangent. Prove that the perimeter of the triangle is equal to the diameter of the circle.

In the picture, the tangent to the circumcircle of a regular pentagon through a vertex is shown. Calculate the angle which the tangent makes with the two sides of the pentagon through the point of contact.

Calculate the perimeter and area of the triangle in the picture.

The pictures shows a tangram of 7 pieces made by cutting a square of side 4 centimetres. Calculate the length of the sides of each piece.

Calculate the length of the sides of the equilateral triangle on the right correct to a millimeter. .

In the picture, the perpendicular is drawn from the midpoint of the hypotenuse of a right triangle. to the base. Calculate the length of the third side of the large right triangle and the lengths of all three sides of the small right triangle.

Calculate.the perimeter and area of the triangle in the picture.

A circle is drawn with (5,3) as centre. (5,6) is a point on the circle.What is the length of the tangents from the origin to the circle?

The picture shows a square drawn sharing one cor¬ner with a right triangle and the other three corners on the sides of this triangle. Calculate the length of a side of the square. .