find the area of a circle with a diameter of 4 ft ( Take pi = 3.14 ) round your solution to two decimal places. pls and Hurr

Step-by-step explanation:

pi x r^2

3.14 x (2×2) = 12.56

area of circle=πr^2= 3.14*4ft=12.56ft

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation: