Question

Seema placed a lighted ulb at point on the ceiling and directly below it placed a table. Now, she put
a cardboard of shape ABCD between table and lighted bulb. Then a shadow of ABCD is casted on the
table as A'B'C'D' (see figure). Quadrilateral A'B'C'D' in an enlargement of ABCD with scale factor 1:2
Also, AB = 1.5 cm, BC = 25 cm, CD = 2.4 cm and AD = 2.1 cm; ZA = 105°, ZB = 100°, ZC 70° and
85
a) what is the measurement of angle A?
b) what is the length of A'B'?
c) what is the sum of angles of quadrilateral A'B'C'D?
d) what is the ratio of sides A'B and A'D?
e) what is the sum of angles of C and D
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Answer 1

Hey mate!

HERE TO HELP U

quadrilateral ABCD~ quadrilateral A'B'C'D'

ANS-(a) I) 105°

b) ii) 3cm

c) ii) 360°

d) iv) 1:2

e) iii) 155°