Seema placed a light bulb at a point 0 on the ceiling and deirectly below
it placed a table. Now she put a cardboard of shape ABCD between table
and lighted bulb. Then a shadow of ABCD is cast on the table as Albicol.
Quadrilateral Albicol is an enlargement of ABCD with scale factor 1:2.
Also, AB= 1.5 cm, BC= 2.5 cm, CD= 2.4 cm and AD= 2.1 cm, angleA=105°, angleB=
100°, angleC= 70° and angle D= 85°
0
105
B
100° 70°
1
(iv) 80°
1
(iv) 2.5 cm
Tonanen N
(a) What is the measurment of angle A'?
(i) 105°
(ii) 100°
(iii) 70°
(iv) 80°
(b) What is the lenght of A'B' ?
(i) 1.5 cm (ii) 3 cm (iii) 5 cm
(c) What is the sum of angles of quadrilateral A'B'C'D' ?
(i) 180°
(1) 360°
(iii) 270°
(d) What is the ratio of sides A'B' and A'D' ?
(i) 5:7
(ii) 7:5 (iii) 1:1
(e) What is the sum of angles of Cand D' ?
(i) 105
(ii) 100°
(iii) 155
1
(iv) None of these
(iv) 1:2
1
(iv) 140
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