Question
Identify the error, if any
this is $\frac{1}{4}$
✓
Answer
We know that,
A fraction is a number that represents part of a whole and the parts needs to be equally divided.
Here,
we can see that,
The given figure is not divided into equal parts.
Hence,
The given figure does not represent the given fraction.
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Mark the following points on a sheet of paper. Tell how many line segments can be obtained in each case:
(i) Two points $A, B$.
(ii) Three non-collinear points $A, B, C$.
(iii) Four points such that no three of them belong to the same line.
(iv) Any five points so that no three of them are collinear.
[Hint: Put $n=2,3,4,5$ in the following formula and check the truth of the statement in each case: If there are $n$ points in a plane such that no three of them are collinear, then the number of line segments obtained by joining these points is equal to $\frac{n(n-1)}{2}$ ]
→(i) Two points $A, B$.
(ii) Three non-collinear points $A, B, C$.
(iii) Four points such that no three of them belong to the same line.
(iv) Any five points so that no three of them are collinear.
[Hint: Put $n=2,3,4,5$ in the following formula and check the truth of the statement in each case: If there are $n$ points in a plane such that no three of them are collinear, then the number of line segments obtained by joining these points is equal to $\frac{n(n-1)}{2}$ ]
Draw a line $AB.$ Take a point $P$ on it. Draw a line passing through $P$ and perpendicular to $AB.$
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