In, ∆LMN, ∠L = 60°, ∠M =50°. If ∆LMN ~ ∆PQR then the value of ∠R is

      If ∆ABC is an isosceles triangle with ∠C = 90° and AC = 5 cm, then AB is

  In a given figure ST || QR, PS = 2 cm and SQ = 3 cm. Then the ratio of the area of

∆PQR to the area of ∆PST is

The perimeters of two similar triangles ∆ABC and ∆PQR are 36 cm and 24 cm respectively. If PQ = 10 cm, then the length of AB is

  If in ∆ABC, DE || BC . AB = 3.6 cm, AC = 2.4 cm and AD = 2.1 cm then the length of AE is

In a ∆ABC, AD is the bisector of ∠BAC. If AB = 8 cm, BD = 6 cm and DC = 3 cm. The length of the side AC is

      In the adjacent figure ∠BAC = 90° and AD ⊥ BC then

Two poles of heights 6 m and 11 m stand vertically on a plane ground. If the distance between their feet is 12 m, what is the distance between their tops?