P
OCKET
R
EFERENCE
G
UIDE
— 24
Circle Area and Circumference
Find the Area and Circumference of a
Circle with a Diameter of 25 Inches:
KEYSTROKE
DISPLAY
o o
0.
2 5 i C
DIA 25
INCH
C
AREA 490.8739
SQ INCH
C
CIRC 78-9/16
INCH
Arc Angle or Degree
Find the Arc Angle (or Degree of Arc),
given a 5-Foot Diameter and an Arc
Length of 3 Feet 3 Inches:
KEYSTROKE
DISPLAY
1. Enter Circle Diameter and Arc Length:
o o
0.
5 f C
DIA 5
FEET
0
INCH
3 f 3 i
3
FEET
3
INCH
2. Find Degree of Arc:
Ç C
ARC 74.48°
Dg
m
-A
RC
-1
02
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