Question

The height of the Eiffel Tower is approximately 3 $\times$ ${10}^2$ m. Which of the following gives the base of ${10}^2$?

• A. 310
• B. 10
• C. 2
• D. 30

Answer 1

The correct option is B 10

The height of the Eiffel Tower is approximately 3 $\times$ ${10}^2$ m.

The base is the number that is multiplied repeatedly and the exponent is the number of times the base needs to be multiplied.

In ${10}^2$, 10 is the base and 2 is the exponent.

Hence, the base of ${10}^2$ is 10.