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Q.
In a triangle ABC, angle 'a' is the smallest one & A+7B = 112. Find the range of value 'c' ?
A.
138 to 164
B.
125 to 147
C.
148 to 158
D.
152 to 164
View Answer
Correct choice: D
Explanation:
A+7B=112 it is clear that A = 14, then it becomes A>=B, but A is smallest angle) given so, range of A is 0.0001 to 13.9999 ( I am taking upto 4 decimal places) so, range of B becomes 14 to 16 ( after rounding off to 4 decimal places) so, range of C becomes 152 to 164 ( after rounding off to 4 decimal places)
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