Related InterviewSolutions

• Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that)What can you say about the angle sum of a convex polygon with number of sides?(a) 7  (b) 8  (c) 10  (d) n
• ABCD is a rhombus and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.
• In ∆ABC and ∆DEF, AB = DE, AB || DE, BC = EF and BC || EF. Vertices A, B and C are joined to vertices D. E and F respectively. Show that(i) Quadrilateral ABED is a parallelogram. (ii) Quadrilateral BEFC is a parallelogram. (iii) AD || CF and AD = CF. (iv) quadrilateral ACFD is a parallelogram. (v) AC = DF (vi) ∆ABC ≅ ∆DEF.
• How many planks, each 2m long, 14 cm broad and 5 cm thick can be prepared from a block which is 8m long, 70 cm broad and 45 cm thick.
• Two opposite angles of a parallelogram are (3x-2)°and (50-x)°.Find the measure of each angle of the parallelogram.
• Two opposite angles of a parallelogram are (3x - 2)° and (50 - x)°. Find the measure of each angle of the parallelogram.
• The opposite angles of a parallelogram are (3x – 20)° and (x + 70)° then the value of x. A) 60° B) 55° C) 45D) 30°
• In a parallelogram ABCD, if ∠A = (3x - 20)°,∠B = (y + 15)° and ∠C = (x + 40)°, then find the values of x and y.
• In Fig. PQRS is an isosceles trapezium. Find x and y.
• Throuth A,B and C lines RQ, PR and QP have been drawn, respectively parallel to sides BC. CA and AB of a `DeltaABC` as shown in the given figure. Show that `BC=1/2QR.`