Question

In figureprove that AB||EF​

Answer 1

$\boxed{\begin{array}{cccc}\sf Chimkandi\: chijji&\sf Frequency&\sf C.F\\\frac{\qquad \qquad \qquad \qquad}{}&\frac{\qquad \qquad \qquad \qquad}{}&\frac{\qquad \qquad \qquad \qquad\qquad}{}\\\sf 0-10&\sf 5&\sf 5 \\\\\sf 10-20 &\sf 7&\sf 12 \\\\\sf 20-30 &\sf 8&\sf 20 \\\\\sf 30-40&\sf 6&\sf 26\\\\\sf 40-50 &\sf 4 &\sf 30\end{array}}$