A)
Two sides are 8 x 2 = 16 x 2 = 32 sq. in.
Two sides are 11 x 2 = 22 x 2 = 44 sq. in.
Top is 8 x 11 = 88 sq. in.
Total surface area: 32 + 44 + 88 = 164 square inches.
B) Area of a circle = PI x r^2
Area = 63.585
63.585 = PI x r^2
Using 3.14 for PI:
63.585 = 3.14 x r^2
Divide both sides by 3.14:
r^2 = 63.585 / 3.14
r^2 = 20.25
r = √20.25
radius = 4.5 inches.
C)
Diameter = radius x 2
Diameter = 4.5 x 2 = 9 inches.
The amount of metal he will need to cover the back of the shelves is 180 inches².
The figure above is like a composite figure. Therefore, lets find the area.
<h3>Area of the composite figure</h3>
The area of the figure is the sum of the whole individual 2 dimensional shapes in the composite figure.
Therefore, two rectangles can be drawn from it.
area of rectangle = lw
where
l = length
w = width
Therefore,
area of rectangle 1 = 9 × 8 = 72 inches²
area of rectangle 2 = 6 × 18 = 108 inches²
Total area = 108 + 72 = 180 inches²
Therefore, the amount of metal he will need to cover the back of the shelves is 180 inches².
learn more on area here: brainly.com/question/25849553
Answer:
77-33
Step-by-step explanation:
1)
11(7-3)
2)
(11 x 7) - (11 x 3)
3)
77 - 33
Answer:
77-33
<u>Answer:</u>
- The solution to the problem is -38.
<u>Step-by-step explanation:</u>
- -(6m + 8) = 4(17 - m)
- => -6m - 8 = 68 - 4m
- => -6m + 4m = 68 + 8
- => -2m = 76
- => m = 76/-2
- => m = -38
Hence, <u>the solution to the problem is -38.</u>
Hoped this helped.
Answer:
i would go with B but let me know if im right or not
Step-by-step explanation:
sorry if its wrong
