The areas of two similar triangles are 81 cm² and 49 cm² respectively. If the altitude of the first triangle is 6.3 cm then the corresponding altitude of the other is

If tangents PA and PB from a point P to a circle with center O are inclined to each other an angle of 80°, then POA is equal to

Sides  of two similar triangles are in the ratio 4 : 9. Areas of those triangles are in the ratio

If a straight line intersects the sides AB and AC of a ΔABC at D and E respectively and is parallel to BC, then

In the figure, the value of x is equal to

Which of the following are similar?

If AB, AC,PQ are tangent as in figure and AB = 5 cm, find the perimeter of ΔAPQ

From a point Q, the length of the tangent to a circle is 24 cm and the distance of Q from the center is 25 cm. The radius of the circle is

In ΔPQR, RS is a bisector of

If two triangles are similar such that ratio of their areas is 25 : 361. Then ratio of corresponding medians is