100 REM SIDE-ANGLE-SIDE.
110 LET P = 3.14159265
120 DEF FND(X) = X*P/180.
130 DEF FNC(X) = COS(FND(X))
140 PRINT "SIDE","ANGLE","SIDE","THIRD SIDE"
150 READ X,A,Y
160 LET Z = SQR(X^2 + Y^2 - 2*X*Y*FNC(A))
170 PRINT X,A,Y,Z
180 GOTO 150
190 DATA 10,60,20,   3,90,4,  10,120,10
200 END
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