Question

Find surface area
of
B=5cm
L=15cm
h=5cm​

Answer 1

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$\bf(1) length =15 cm \: , breadth =5 cm \: , height =5 cm$

$\bf \: TSA=2(lb+bh+lh)$

$\bf \: 2 \bigg[15×5+5×5+15×5 \bigg]$

$\bf \: TSA=2 \bigg[75+25+75 \bigg]$

$\bf \: =2×175$

$\bf \bigg[TSA=350cm² \bigg]$

Answer 2

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