Question

Find the mean proportional between 2&8

Answer 1

Step-by-step explanation:

Let mean proportional between 2 & 8 be x.

$\therefore \: {x}^{2} = 2 \times 8 \\ \implies \: {x}^{2} = 16 \\ \implies \: {x} = \sqrt{16} \\ \implies \: {x} = 4$

Thus, the mean proportional between 2 & 8 is 4.