In figure, if , B = 40° and C = 60°, then BDA =

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

From a point P, the length of the tangent to a circle is 15 cm and distance of P from the center of the circle is 17 cm. Then the radius of the circle is

If a vertical stick 12 m long casts a shadow 8 m long on the ground and at the same time a tower casts a shadow 40 m long on the ground, then the height of the tower is

If P is a point outside the circle, then the number of tangents from P to the circle is

ABC and BDE are two equilateral triangles such that D is the mid point of BC. Ratio to the area of triangles ABC and BDE is

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

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

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