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U
SER
’
S
G
UIDE
— 47
CIRCLE AND ARC CALCULATIONS
Circumference and Area of a Circle
Find the area and circumference of a circle with a diameter of 11
inches:
KEYSTROKE DISPLAY
o o 0.
1 1 i C DIA 11 INCH
C AREA 95.03318 SQ INCH
C CIRC 34-9/16 INCH
Arc Length —
Degree and Diameter Known
Find the arc length of an 85° portion of a circle with a 5-foot diameter:
KEYSTROKE DISPLAY
o o 0.
5 f C DIA 5 FEET 0 INCH
8 5 a ARC 85.00°
a ARC 3 FEET 8-1/2 INCH
Arc Length —
Degree and Radius Known
Find the arc length of a circle with a 24-inch radius and 77° of arc:
KEYSTROKE DISPLAY
o o 0.
2 4 i Ç a RAD 24
INCH
7 7 a ARC 77.00°
a ARC 32-1/4 INCH
4065UG-E-B 6/9/04 1:49 PM Page 47
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