15. When the temperature of a steel tape increases the length of the tape

Question

Question

Answer 1

Answer #1

15)If the temperature of a steel tape increases, the length of the tape also increases due to the coefficient of thermal expansion.

23)formula for sum of interior angle for a polygon is given by

(n-2)*180

So, for six sided polygon it will be (6-2)*180

=720(degree)

24)A line which is lying in level plane is called level line, so level line is flat (true)

Answer 2

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