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

Determine the length of a tangent to a circle with radius 5 cm, drawn from a point at a distance of 13 cm, from the center of the circle.

In ΔABC, DE is || to BC, meeting AB and AC at D and E. If AD = 3 cm, DB = 2 cm and AE = 2.7 cm, then AC is equal to

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

Which of the following are similar?

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

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

In ΔPQR, RS is a bisector of

In triangles ABC and DEF, B = E,  C = F, then

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