Question

13.72 x 7 = r²

please tell the final answer
I will mark as brainlist

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Answer 1

Answer:

9.8

Step-by-step explanation:

13.72 × 7 = 96.04 = r2

r = √(96.04)

r = 9.8

Answer 2

Answer:

r = 9.8

Step-by-step explanation:

given ,  r² = 13.72 x 7

                = $\frac{1372}{100}$ * 7

                = $\frac{2 * 2* 7 * 7 * 7*7}{10*10}$

                = $\frac{2 ^2* 7 ^2 * 7^2}{10^2}$

                = $\frac{(2 * 7 * 7)^2}{10^2}$

                = $\frac{(98)^2}{10^2}$

                = $(\frac{98}{10})^2$

             r² = 9.8²

=> r = 9.8