Question

the
length of diagonal of a
a cube is 6√3cm .find its total surface
area .​

Answer 1

Answer:

216 cm²

Step-by-step explanation:

we know that the formula of diagonal of cube is

$\sqrt{3a}$

so now we find the value of a=

$\sqrt{3a } = 6 \sqrt{3 } \\ a = 6 \sqrt{3} \div \sqrt{3} \\ a = 6cm$

a=6cm

now we know the formula of cube that is 6a²

so we put the value 6×(6)²

6×36

216cm²

here is your answer bro........