Question

The dimensions of a gift box are 1.8 × 1.5cm × 0.8cm. Find how much gift paper is required to cover it ?​

Answer 1

$\huge\bf\red{\underline{\underline{Given}}}\::$

• $\sf\orange{1.8cm\:(Length)}$

• $\sf\orange{1.5cm\:(Breadth)}$

• $\sf\orange{0.8cm\:(Height)}$

$\huge\bf\red{\underline{\underline{To\:Find}}}\::$

• $\sf\gray{Gift \:paper\: required\: to\: cover\: the\:gift\:box}$

$\huge\bf\red{\underline{\underline{Solution}}}\::$

${\boxed{\sf{\pink{Gift\:paper\: required\:=\: Surface\:area\:of\:box}}}}$

$\hookrightarrow\:\sf\green{Gift\:paper\: required\:=\:2(lb\:+\:bh\:+\:hl)}$

$\hookrightarrow\:\sf\blue{Gift\:paper\: required\:=\:2(1.8\:\times\:1.5\:+\:1.5\:\times\:0.8\:+\:0.8\:\times\:1.8)}$

$\hookrightarrow\:\sf\green{Gift\:paper\: required\:=\:2(2.7\:+\:1.2\:+\:1.44)}$

$\hookrightarrow\:\sf\blue{Gift\:paper\: required\:=\:2(5.34)}$

$\hookrightarrow\:\underline{\boxed{\sf{\green{Gift\:paper\: required\:=\:10.68cm^{2} }}}}$

$\Large\bf\red{\underline{\underline{Additional\: Information}}}\::$

$\star\:\sf\underline\pink{Important\:formulas\:of\: cubiod}$

• $\sf\red{LSA\:=\:2(lh\:+\:bh)}$

• $\sf\orange{TSA\:=\:2(lb\:+\:lh\:+\:bh)}$

• $\sf\blue{Volume\:=\:l\:\times\:b\:\times\:h}$

• $\sf\purple{Diagonal\:=\:\sqrt{(l^{2}\:+\:b^{2}\:+\:h^{2})}}$

Answer 2

Pls mark as brainliest answer