Question

1. A wooden box measures 8 dm long, 6 dm wide, and 4 dm high. What is the surface

Answer 1

Answer:

(its best when you draw a picture btw)

4 x 6 = 24, 24 x 2 = 48

8 x 4 = 32, 32 x 2 = 64

6 x 8 = 48, 48 x 2 = 96

Add all the given areas:

48 + 64 + 96 = 208 dm^2 is your surface area for question 1.

Lateral surface area of the roof.

8 + 8 + 8 + 8 = 32

32(perimeter of all sides of base) x 1/2(included when finding later surface area) x 3.5(slant height) = 56 m^2 for question 2

2 x 12(dozen) = 24 cans

half of 10 is 5(radius),

Finding Area of two circular bases:

5^2 x 3.14 = 78.5

78.5 x 2 = 157

Finding round surface area:

Need to find circumference first,

5 x 3.14 x 2 = 31.4

31.4 x 14(height) = 439.6

Add both given areas:

157 + 439.6 = 596.6

Now we need to multiply it by 24 since there are 24 of those cans:

596.6 x 24 = 14,318.4 cm^2 is your answer for question 3