Question

in this problem you will use a ruler to estimate the length of AC. afterwards you will be able to see the lengths of the other two sides and you will use the pythagorean theorem to check your answer

Answer 1

5.124

Step-by-step explanation:

Given the following sides

AB = 6.5cm

BC = 4.0cm

Required

AC

Using the pythagoras theorem;

AB^2 = AC^2 + BC^2

6.5^2 = AC^2 + 4^2

42.25 = AC^2 + 16

AC^2 = 42.25 - 16

AC^2 = 26.25

AC = \sqrt{26.25}

AC = 5.124

Hence the actual length of AC to 3dp is 5.124