Question

answer.................... ​

Answer 1

The altitude of parallelogram BCFE is 4 cm.

Area of ∆ACD = 1/2 × base × altitude

8 = 1/2 × AD × altitude

8 = 1/2 × EF × altitude .....[ AD= EF ]

8 = 1/2 × 4 × altitude

8 = 2× altitude

altitude = 4 cm