Question
The table given below contains some measures of the square. Find the unknown values.
| Side | Perimeter | Area |
| ? | 100 m | ? |
✓
Answer
$\text { Perimeter of a square }=(4 \times \text { side }) \text { unitsArea of a square }=\left(\text { side } \times \text { side unit }^2 \text { Perimeter }=4 \times s ^{\text {unit }}\right.$
$100=(4 \times s) m$
$\frac{100}{4}=s$
$s=25 mArea =s \times s \text { unit }^2$
$=25 \times 25 m ^2$
$=625 m ^2$
$A=625 m ^2$
Completing the unknown values in the table
$100=(4 \times s) m$
$\frac{100}{4}=s$
$s=25 mArea =s \times s \text { unit }^2$
$=25 \times 25 m ^2$
$=625 m ^2$
$A=625 m ^2$
Completing the unknown values in the table
| Side | Perimeter | Area |
| 25 m | 100 m | 625m^(2) |
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→(i) all pairs of parallel lines.
(ii) all pairs of intersecting lines.
(iii) pair of lines whose point of intersection is ' $V$ '.
(iv) point of intersection of the lines ' $I _2$ ' and ' $I _3$ '.
(v) point of intersection of the lines ' $I_1$ ', and ' $I_5$ '
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