<u>Question Completion</u>
- Box A, The rectangular prism is of dimension 3 inch by 4 inch by 10 inch
- Box B, the Triangular prism has a base triangle of base 8 inch and height 3 inch. The length of the triangular prism is 6 Inch
See attached diagram
Answer:
Box B
Step-by-step explanation:
To determine the box which is made with less cardboard, we calculate the Total Surface Area of each box.
<u>Rectangular Prism(Box A)</u>
Total Surface Area=2(LW+LH+WH)
=2(10x4+10x3+3x4)
=
2(40+30+12)
=2(82)
Total Surface Area of Box A = 164 square inches
<u>Triangular Prism (Box B
)</u>
Total Surface Area=2(Area of Triangle)+Area of Base rectangle+2(Area of side rectangles)
=2(0.5X3X8)+(8X6)+2(5X6)
=24+48+60
=132
Total Surface Area of Box B = 132 square inches
Since the total surface area of Box b is lesser,Box B is made with less cardboard .
Answer:128
Step-by-step explanation:
So first thing ya gotta do is find the area of the circular plates, which the equation is
![A= \pi r^2](https://tex.z-dn.net/?f=A%3D%20%5Cpi%20r%5E2)
.
To get the radius, just divide the diameter, 30, by half. So in this case the radius would be 15.
Now that ya know that 15 is the radius, you can plug it into the equation.
![A= \pi 15^2](https://tex.z-dn.net/?f=A%3D%20%5Cpi%2015%5E2)
![A=225 \pi](https://tex.z-dn.net/?f=A%3D225%20%5Cpi%20)
(I would advise you don't round anything until the end to get more accurate answers.)
So now that you know the area of the plate, you're gonna just multiply the area by 1/3 for lasagna and 2/3 for the salad.
![225 \pi ( \frac{1}{3} )=235.6](https://tex.z-dn.net/?f=225%20%5Cpi%20%28%20%5Cfrac%7B1%7D%7B3%7D%20%29%3D235.6)
![225 \pi ( \frac{2}{3} )=471.2](https://tex.z-dn.net/?f=225%20%5Cpi%20%28%20%5Cfrac%7B2%7D%7B3%7D%20%29%3D471.2)
(also make sure to use cm^2 units!)
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
The answer to
is 1440.
I believe she is correct because 1440 can be divided by another number without any remainders.