In the diagram what is the perimeter of ∆ BOD?(a) 6 (b) 6.83(c) 13.66 (d) 16

ABC ~ ∆DEF. If AB = 4 cm, BC = 3.5 cm, CA = 2.5 cm andDF = 7.5 cm, the perimeter of∆DEF is

i) In ∆ABC, AB = 3 cm, BC = 2 cm and AC = 2.5 cm. ∆DEF ~ ∆ABC, EF = 4 cm.What is the perimeter of ∆DEF ?(A) 30 cm (B) 22.5 cm (C) 15 cm (D) 7.5 cm(ii) sin q. cosec q = ______(A) 1 (B) 0 (C) 12 (D) √2(iii) Find the perimeter of a sector of a circle if its measure is 90° and radiusis 7 cm.(A) 44 cm (B) 25 cm (C) 36 cm (D) 56 cm(iv) ______ number of tangents can be drawn to a circle from the point onthe circle.(A) 3 (B) 2 (C) 1 (D) 0Q.1. (B) Solve the following : 41. In trapezium ABCD, A BCDQPside AB || side PQ || side DC,AP = 15, PD = 12, QC = 14, find BQ.2. If sin q = 1161 find the values of cos q using trigonometric identity.3. Find the total surface area of a cylinder if the radius of its base is 5 cmand height is 40 cm.4. Draw seg AB of length 4.5 cm and draw its perpendicular bisector.

In isosceles △DEF as shown in the diagram, DE = DF = 3 cm and DG = 2 cm.Find the perimeter of △DEF, correct to 3 significant figures.

Point O is the centre of the circle shown. Line segment AB is 20 units long, line segment CF is 4 units long, and line segment ED is 3 units long. Segments AC, AD, and CD are tangent to the circle at points B, E, and F, respectively. The perimeter of ΔACD isa27 units b50 unitsc51 units d54 units

In the figure given, D divides the side BC of a ΔABC in the ratio 3 : 5. The area of ΔABD equals to