Answer:
I think it would be 15
Step-by-step explanation:
Number one is a square number two is quadrillateral
The area of the circle is given as:

Plugging the value of the radius we have that:

Therefore the area in terms of pi is:
Answer:
Given that the equation of a circle is :

90/2=45
45/3=15
15/3=5
90=2*3*3*5=2¹*3²*5¹