POCKET REFERENCE GUIDE — 23
CIRCLE CALCULATIONS
Circumference and Area
Find the Circumference and Area of a
circle having a diameter of 10 Inches.
KEYSTROKE DISPLAY
1. Clear calculator and enter diameter:
o o 0.
1 0 i ç DIA 10 INCH
2. Find circle Area and Circumference:
ç AREA 78.53982 SQ INCH
ç CIRC 31-7/16 INCH
3. Convert to decimal Inch:
Ç i 31.41593 INCH
Arc Lengths
Find the arc Length of an 85° portion of a
circle with a 5 Foot diameter.
KEYSTROKE DISPLAY
1. Clear calculator and enter diameter:
o o 0.
5 f ç DIA 5 FEET 0 INCH
2. Enter arc angle then find arc Length,
chord, segment Area, pie slice Area, and
segment rise:
8 5 A A ARC 3 FEET 8-1/2 INCH
A CORD 3 FEET 4-9/16 INCH
A SEG 1.522922 SQ FEET
A PIE 4.636031 SQ FEET
A RISE 0 FEET 7-7/8 INCH
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