GATE Civil 2022 Set 2 | GA Question: 10

Question

An ant walks in a straight line on a plane leaving behind a trace of its movement. The initial position of the ant is at point $\text{P}$ facing east.

The ant first turns $72^{\circ} $ anticlockwise at $\text{P},$ and then does the following two steps in sequence exactly FIVE times before halting.

 

1. moves forward for $10 \; \text{cm.}$
2. turns $144^{\circ}$ clockwise.

The pattern made by the trace left behind by the ant is

       A.  

       B. 

       C. 

       D. 

Answer 1

Using the above information, given in the question, we can easily draw the trace of an ant movement.

 

Here, ${\color{Blue}{\text{PS = SQ = QT = TR = RP = 10 cm}}}$

Correct Answer $:\text{C}$