List all the common factors of 30 and 40

Common factors of 30: −30,−15,−10,−6,−5,−3,−2,−1,1,2,3,5,6,10,15,30

Common factors of 40: −40,−20,−10,−8,−5,−4,−2,−1,1,2,4,5,8,10,20,40

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

step-by-step explanation: