(Solved): The function f(r)=r2 determines the area of a circle in cm2,A, in terms of the radius of the circ ...

The function $$f(r)=?r^2$$ determines the area of a circle in $${\mathrm{cm}}^2,A$$, in terms of the radius of the circle in cm, $$r$$. a. Define a function $$a$$ that determines the radius of a circle in $$\mathrm{cm},r$$, in terms of the area of the cirlce in $${\mathrm{cm}}^2,A$$. $$g(A)=$$ b. Use funetion notation to represent each of the following: 1. The area (in $${\mathrm{cm}}^2$$ ) of a circle whose radius is $$2.87\mathrm{cm}$$ ? if. The radius (in cm) of a circle whose area is $$1929{\mathrm{cm}}^2$$ ? Hits ii. How mech larget is the area of a circle whose radius is $$15.7\mathrm{cm}$$ than a cirele whose radius is $$15.6\mathrm{cm}$$ ? Pox I: linter your answer as an expresion. I kample $$3x^{?}2+1,x+5,(a+b)ve$$ Be mare your varibhles math those in the quesicin Hax 2 I linier yoar answer as an expresion. Ixanefle: $$3x^{h}2+1,2/5,(a+b)$$ e We mare your variablev makte those in ilse queation De sare your variables masch those in the question. He vure your variables batah those in the quesion