Casio FX-180PA Manual page 35

Ex. 2) Calculate the length, i of the arc and the length, a of the chord of a sector with
radius and radii making an angle of 0°.
nrH
180
G
i, -2r sin
2
Radius (r)
Angle of radii (0) Arc length (t') Chord length (a)
10 cm
60° (10.47) cm (10
) cm
12
42°34'
( 8.91) ( 8.71)
15 36°
( 9.42) ( 9.27)
The values enclosed with parentheses are to be obtained.
LRN
P1 P2
(Select LAN mode) = ~
0.
LAN P2
(Designate program No.)
P2
0.
LRN a P2
= ® ® 10
10. ~
Execution of the program stored.
(Select RUN mode)
O©® 60
O©O®16UØ
2
=
•34•
©O
-' To K1 register
LAN a P2
60. SD
0 To K2 register
IAN 0 P2
10.47197551
HLT for displaying result (t')
®0
K1 >2, K2
2
Q® ® QD
sin - K1
2
=
❑~
El
LAN Iii
P2
10.
Result (a)
(LAN disappears)
10.