Answer:
138 cm.
Step-by-step explanation:
So first, we find the S.A. of the front and back.
The diagram says the side length of the front is 3 cm. and 3 cm.
3x3=9. So then, the back is also 9 cm, 9+9=18.
Now to find the S.A.'s of the four sides, you have to see the side lengths of each of them. The side lengths are 3 and 10.
3x10=30. This means each of them is 30 cm.
30x4=120. 120 is the total surface area of the four sides.
To find the total surface area of the whole rectangle, you add all the surface areas.
120+18=138 cm. (Not squared, since it's surface area and not area.)
I think it's A becaouse the answer I got was very close to the answer of A so it's A I think. Im just tying to help c:
Answer:
4 cups of sugar 6 cups of flour. 8 cups of sugar 12 cups of flour.
Step-by-step explanation:
what are the options
Answer:
160
Step-by-step explanation:
6.4 = 0.04x
6.4 / .04 = 160
