C = ? when d = 25 m. (C = circumference) (d = diameter)
1 answer:
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Solution:
Given expression: ()
=
= 13
In the expression of 13.602*1.90*3.06 will have only 3 significant figure because the number 1.90 has only 3 significant figure .
In the expression of 4.2*1.4097 will have only 2 significant figure because the number 4.2 has only 2 significant figure.
In the result of 79.1/5.9 will have only 2 significant figure because the number 5.9 has only 2 significant figure.
Hence, in the result there are only 2 significant figure.
Given:
A figure.
To find:
The value of x.
Solution:
Draw two parallel lines as shown in the below figure.
If a transversal line intersect two parallel lines, then alternate interior angles are same.
(Alternate interior angle)
(Alternate interior angle) ...(i)
The value of angle d is
Using (i), we get
If a transversal line intersect two parallel lines, then same sides interior angles are supplementary angles.
Now,
Therefore, the value of x is 70.
