In figure, DE || BC, AD = 2cm, BD = 2.5 cm,  AE = 3.2 cm. Determine AC.

ΔABC is such that AB = 3cm, BC = 2 cm and CA = 2.5 cm.  If ΔDEF ~ ΔABC and EF = 4 cm, then perimeter of
ΔDEF is 

In ΔABC and ΔDEF, ∠B = ∠E, ∠F = ∠C and AB = 2DE, then two triangles are

If Δ ABC ~  Δ PQR, then ∠B =

Two poles of height 6 m and 11 m stand on a plane ground. If the distance between their feet is 12 m, find the distance between their tops.

A ladder 10 cm long reaches a windows 8 cm above the ground. The distance of the foot of the ladder from base of the

wall is,

In given figure DE || BC and ^AD/_DB = ³/₅.  If AC = 4.8 cm, Find AE.

The areas of two similar triangles are 121 cm² and 64 cm² respectively. If the median of the first triangle is 12.1 cm, the corresponding median of the other is

In the given figure ΔABC and ΔDEF are similar, BC = 3 cm, EF = 4 cm and area of ΔABC = 54 cm². The area of Δ DEF is

If ABC is an acute angled triangle, acute angled at B and AD ⊥ BC, then AC² =