ExplanationSUPPLY a number for angle B. Since B > 90°, B can be anything greater than 90° (like 90.0009°), but start with the lowest possible integer, B = 91° to make calculations easier:
A + B + C = 180°
25° + 91° + C =180°
C = 64°
Now imagine if B were at the other extreme—as large as possible. :
A + B + C = 180°
25° + B + C =180°
B + C =155°
If B = 154°, then C = 1°
Angle C can be anything less than 65 degrees, so the first four answers are possible values of C.
Hence options A, B, C and D are correct.Attachment:
di.jpg [ 10.21 KiB | Viewed 27318 times ]
Attachment:
di new.jpg [ 6.94 KiB | Viewed 26479 times ]
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79% (00:51) correct
