We'll be using...
To find the volume, you use a simple formula. And that formula is L×W×H.
To find the surface area, you need to find the area of each piece and add it up later in the end.
75.
L=3 cm, W=1 cm, H=3 cm ... We'll be using.
Volume
To solve the volume, you need to use the formula. 3×1×3.
3×1×3 ... Equation
3×3 ... Step 2
9 ... Answer
Surface area
(3×3)2 ... Multiply by 2 since there is only 2 3×3 piece
36+((3×1)4) ... Step 2
18+12... Step 3
30 ... Answer.
So for number 75, volume = 9 cm³ and SA = 30 cm²
76.
L=6 ft, W=2 ft, H=5 ft
Volume
6×2×5 ... Step 1
12×5 ... Step 2
60 ... Answer
Surface area
(6×5)2 ... Step 1
(2×5)2 ... Step 2
(6×2)2 ... Step 3
60+20+24 ... Step 4
104 ... Answer
So, for number 76, volume = 60 cm³, SA = 104 cm²
77.
L=4 m, W=2 m, H=6 m
Volume
4×2×6 ... Step 1
8×6 ... Step 2
48 ... Answer
Surface Area
(4×2)2 ... Step 1
(2×6)2 ... Step 2
(4×6)2 ... Step 3
16+24+48 ... Step 4
40+48 ... Step 5
88 ... Answer
So, for 77, Volume = 48 m³ and SA = 88 m²
