we know that
in the right triangle of the figure
Applying the Pythagorean Theorem

therefore
the answer is the option
C) 
Answer:

Step-by-step explanation:
The formula to find the area and circumference of a circle is:

<em>*</em><em>no</em><em>te that pi is 3.14*</em><em> </em>Therefore the area is:

Therefore the circumference is:

Consider that the experimental probability of an event is based upon the previous trials and observations of the experiment.
The experimental probability of occurrence of an event is given by,

As per the problem, there are a total of 1230 trials of rolling a dice.
And the favourable event is getting a 2.
The corresponding experimental probability is calculated as,

Thus, the required probability is 13.98% approximately.
Theref