First, you need to multiply 2*21cm, which gives us 42 cm.
Then we multiply it by π, or 22/7 in this case, and 22/7*42cm gives us 132 cm.
So the answer is: 132cm.
Hope this helped! c:
No you can’t add them, but you can do this: 7x+7 =0
-7 -7
7=7x
/7 /7
1=x
6x^4 + 15x^3y^2 + 3x^2y^3
3x^2 (2x^2 + 5xy^2 + y^3) <==
(0,-4) and (1,3)
3-1/-4-0
2/-4
-2
Your slope is -2
Hope that helped
