Question
$\triangle PQR \sim \Delta PEF , m \angle P =70^{\circ}, PQ =5 cm, PR =3.5 cm$ Construct $\triangle PEF$, if $PQ : PE =5: 7$.
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| Height (in cm) | 150-155 | 155-160 | 160-165 | 165-170 | 170-175 |
| Number of students | 15 | 8 | 20 | 12 | 5 |