48 — C
ONSTRUCTION
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Complex Concrete Volume
You’re going to pour an odd-shaped patio 4-1/2 Inches deep with the
dimensions shown below. Calculate the total area (by dividing the draw-
ing into three rectangles) and determine the total Yards of concrete
required. Then, find the total cost, if concrete costs $45 per Cubic Yard.
KEYSTROKE DISPLAY
1. Find area of Part “A” and store into Memory:
o o 0.
2 4 f 6 i – 24 FEET 6 INCH
7 f = 17 FEET 6 INCH
x 2 7 f = 472.5 SQ FEET
µ M+ 472.5 SQ FEET
2. Find area of Part “B” and store into Memory:
7 f 7 FEET
x 9 f = 63. SQ FEET
µ M+ 63. SQ FEET
3. Find area of Part “C” and store into Memory:
9 f 9 FEET
x 9 f = 81. SQ FEET
µ M+ 81. SQ FEET
(Cont’d)
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