Answer:
Step-by-step explanation:
Total surface area is the area of the net.
<u>The rectangles have area:</u>
- 8*(5 + 6 + 5) = 128 units²
<u>The triangles have area:</u>
<u>Total area is:</u>
Correct choice is C
Answer:
11+6i
Step-by-step explanation:
We can start by combining like terms, the ones with i, and the ones with one as a factor. Since 3+8 is 11 and 4i+2i is 6i, our answer is C. 11+6i
I believe the volume of the shape is 210mm. the formula is v=lwh. so you multiply all the numbers to get 210. hope that helped!
Perimeter is l+l+w+w, or l*2+w*2. We know the width is 4 feet. 26=4*2+l*2
So first, find what 4*2 equals. The answer is 8. So subtract 8 from both sides. 4*2 Cancels out, and 26 changes to 18. Then, divide both sides by 2. The (*2) gets cancelled and 18 becomes 9. The length is 9 FEET.
:)-Kibeye
