PDF chapter test TRY NOW
1. A boy of height \(90 \ cm\) is walking away from the base of a lamp post at a speed of \(1.2 \ m/sec\). If the lamp post is \(3.6 \ m\) above the ground, find the length of his shadow cast after \(4\) seconds.
Answer:
The length of the shadow of the boy after \(4\) seconds \(=\) \(m\)
2. In the below figure, \(\angle A = \angle CED\). Prove that \(\Delta CAB \sim \Delta CED\). Also, find the value of \(x\).
Answer:
In \(\Delta CAB\) and \(\Delta CED\):
\(\Delta CAB\) \(\Delta CED\).
The value of \(x\) \(=\) \(m\).
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