Question

Find the length of cuboid whose breath is 15cm, height 10 cm, T.S.A = 1300.​

Answer 1

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Answer 2

Answer ⤵️

Let its length be x.

T.S.A= 2(lb+bh+lh)

1300= 2[(x×15)+(15×10+(x×10)]

1300= 2(15x+150+10x)

1300= 30x+300+20x

1300= 50x+300

50x= 1300-300

50x= 1000

x=20

So its length is 20 cm

Step-by-step explanation:

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