In `DeltaABC,APbotBC,BQbotAC,B-P-C,A-Q-C "then prove that " DeltaCPA~DeltaCQB. If AP = 7 , BQ = 8 , BC = 12 "then find" AC.`

In Delta ABC, AP is a "median". If AP = 7,AB^(2) + AC^(2) = 260 "find" BC .

In DeltaABC,AB=5,BC=6,AC=7.DeltaPQR~DeltaABC. "Perimeter of" DeltaPQR" is " 360 . "Find "PQ, QR and PR.

In DeltaABC,B-D-CandBD=7,BC=20 Then find the following ratio. (A(DeltaADC))/(A(DeltaABC))

In DeltaABC, ray BD bisects angleABC,A-D-C, Side DE|| Side BC. A-E-B. then prove that AB:BC=AE:EB

In DeltaABC,B-D-CandBD=7,BC=20 Then find the following ratio. (A(DeltaABD))/(A(DeltaABC))

For an A.P. if t_4 = 12 and d = -10 then find a. A)-18 B)42 C)-5 D)21

If a^2, b^2,c^2 are in A.P., then prove that tanA ,tanB ,tanC are in H.P.

In DeltaABC" with "C=90^(@),AC=BC=1. Find costheta.

E is a point on side CB,C-B-E, "In" DeltaABC,AB=AC. "If seg " AD,BC,B-D-Cand "seg"EFbot"side" AC,A-F-C."Prove that " DeltaABD~DeltaECF.