Question

the height of a parallelogram is 3dm. if the area is 240 cm², find the base of parallelogram. ​

Answer 1

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Area of parallelogram =240m2

Height =12cm

Area of parallelogram = Base × Height

∴ Base =12240

              =20cm

Hence, the answer is 20cm.

Answer 2

Let's, Convert height into centimetre (cm)

★We know that 1 dm = 10 cm  

Therefore, 3 dm = 3 cm  

Hence, Height of parallelogram=30 cm.  

Now we know that,  

★Area of parallelogram = Height×Base  

→240 = 30 × Base  

→240/30 = Base  

→8 cm = Base  

So, the base of a parallelogram = 8 cm.