Question

In a parallelogram, ABCD, if BC = 14 cm, CF = 9 cm, BG = 21 cm, find AB. please tell me ​

Answer 1

Answer:

Area of parallelogram by taking CF as base and BC as altitude

area of parallelogram = base ×height

=21*14

=294cm²

given,

CF =9cm

i.e. CF is the height of the parallelogram, taking AB as an altitude

let AB be x

therefore

x*9=294

x=294/9

x=98/3 or 32⅔

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Answer 2

Answer:

Area of parallelogram by taking CF as base and BC as altitude.

area of parallelogram = base × height

= 21*14 = 294cm².

Given,

CF = 9cm.

CF is the height of the parallelogram, taking AB as an altitude.

let AB be x.

Therefore,

x*9 = 294.

x = 294/9.

x = 98/3 or 32⅔.

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