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COMPLEX CONCRETE VOLUME
Example: You are pouring concrete for a patio with the dimensions shown below. Calculate the total
area (by dividing the patio into three rectangles) and determine cubic yards of concrete required,
assuming a depth of 4-1/2 Inches. Then, find the total cost, if concrete costs $135 per Cubic Yard.
20'
KEY INPUT & DISPLAY
1. Find area of Part " A " and store into Memory:
On/C
On/C
2
0
Feet
×
3
0
Feet
M+
2. Find area of Part " B " and store into Memory:
5
Feet
=
×
8
Feet
M+
3. Find area of Part " C " and store into Memory:
8
Feet
×
=
8
Feet
M+
4. Find total area and clear Memory:
Rcl
Rcl
5. Find total Cubic Yards:
×
4
1
Inch
6. Find total cost:
×
1
3
5
Conv
=
=
/
2
0 (Cost)
30'
8'
8'
Page 14
5'
8'
20
600
M+ 600
SQ Feet
40.
SQ Feet
M+ 40.
SQ Feet
64.
SQ Feet
M+ 64.
SQ Feet
M+ 704
SQ Feet
9.777778
$1320.
0
0
Feet
Inch
SQ Feet
M
5
M
Feet
M
M
8
M
Feet
M
M
M
CU YD
00
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