In the figure given below, PT=6 cm and PA=4 cm. What is the length of AB?

If each interior angle is doubled of each exterior angle of a regular polygon with n sides, then the value of n is 

If two complementary angles are in the ratio of 2:3. find the ratio of square of smaller angle to square of greater?

In the given figure, PQR is an equilateral triangle with side as 12 cm. S and T are the midpoints of the sides PQ and PR respectively. What is the area (in cm²) of the shaded region?

If the sum of the interior angles of a regular polygon be 1080 °, the number of sides of the polygon is 

In ΔPQR , ∠R=54° the perpendicular bisector of PQ at S meets QR at T. If ∠TPR =46°, then what value of (in degree) ∠PQR?

∠A, ∠B, ∠C are three angles of a triangle. If ∠A -∠B =18°, ∠B – ∠C = 45°, then, ∠B, ∠A and ∠C are

PQR is a right angled triangle in which PQ = QR . If the hypotenuse of the triangle is 20 cm , then what is the area ( in cm ) of the triangle PQR ?