The answer is 9.75.
Rounding a number to the nearest hundred means to write down the multiple of 100 that is nearest to the number.
Pythagoras Theorem :
a^2 + b^2 = c^2
a = side of the right triangle
b = side of the right triangle
c = hypotenuse
How to find out the missing side of the triangle?
Given an image of a triangle with sides 12cm, 7cm.
Thus, the missing side using Pythagoras is
12x12=144
7x7= 49
144-49= 95
and √95 = 9.75.
Learn more about triangles on: https://brainly.com/question/343682
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