Find the surface area of the "unrolled" cylinder where a = 4 cm and b= 10 cm.
Leave your answer in terms of Pi
![Find the surface area of the unrolled cylinder where a 4 cm and b 10 cm Leave your answer in terms of Pi class=](https://us-static.z-dn.net/files/dd3/cffd1e22b2e623838fae5ad6cb25e077.png)
Answer:
= 140.544cm^2
Step-by-step explanation:
Given data
a is the radius=4cm
b is the lenght= 10cm
We two circles, hence the area of the circles is given as
Area= 2(πr^2)
Area= 2(3.142*4^2)
Area= 2(50.272)
Area= 100.544cm^2
Area of the rectangular shape= 4*10= 40cm^2
Hence the total area = 100.544+40
= 140.544cm^2