Answer:
18.84
Step-by-step explanation:
3.14 · 6
18.84
Answer:
Damon is 18, Damon's brother is 11 years old.
Step-by-step explanation:
So, the total age of them both is 29. Damon is 7 years older, so we use 29-7=22. Now, 22 is Damon's brother's age times 2, so we use 22/2=11. 11 is Damon's age is 11+7=18, and His brothers age is 11.
Answer:
S=2lw+2lh+2wh
Step-by-step explanation:
If we consider the structure of a box with length l, width w, and height h, we may note that it is formed from six rectangular faces. The bottom and top faces are rectangles with sides of length l and w. Two of the side faces have side lengths l and h. And the remaining two side faces have side lengths w and h.
As the area of a rectangle is the product of its side lengths, we can put this together to get the surface area S of the box as
S=2lw+2lh+2wh
