Find measure of central angle of the arc whose length is 22 cm and radius of the circle is 28 cm?

In the given figure, PQR is an equilateral triangle and PS is the angle bisector of angle P. What is the value of RT : RQ?

G is the centroid of ΔABC. The medians AD and BE intersect at right angles. If the lengths of AD and BE are 9 cm and 12 cm respectively; then the length of AB (in cm) is?

Diagonals of a Trapezium ABCD with AB‖CD intersect each other at the point O. If AB=2CD, then the ratio of the areas of ΔAOB and ΔCOD is

In the given figure, DE‖BC and DE=1/3 BC if area of triangle ADE=20 sq. cm, then what is the area (in sq.cm) of the triangle DEC?

In a given circle, the chord PQ is of length 18 cm. AB is the perpendicular bisector of PQ at M. If MB=3. Find the length of AB?

If the length of the three sides of a triangle are 6 cm, 8 cm, and 10 cm,  then the length of the median to its greatest side is