Question

20. A girl of height 90cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. The lamp is 3.6m above
the ground, after 4 seconds CD is the position of the girl.
Based on above figure answer the following
1. The distance between the lamp-post and the girl after 4 seconds is
(a) 120 cm
(b) 240 cm
(c) 360 cm
(d)480 cm
II. Which relation is correct?
(a)Δ ΑΒΕ =~Δ CDE
(b) triangle ABE ~ triangleCDE
c. ABE = CDE
(d) None of these
III. The length of the shadow of the girl after 4 seconds is
(a) 3.6 m
(b) 2.6 m
c.1.6 m
(d) 0.6 m
IV. The tangent of angleE
(a) 3/4
(b) 9/16
c.16/9
(d) 4/3
V. The distance between point E and the top of the lamp-post is
(a) 59.9 m
(b) 59.32 m
c.7.74 m
(d) 7.72 m​

Answer 1

Answer:

well that's a long question ...

Step-by-step explanation:

Answer 2

Answer:

C

B

A

A

C

IS THE CORRECT ANSWER