<span>You can let x = the length of the short side. Then the length of next largest side would be x+2 and the length of the largest side would be x+4. These sides add up to 195 mm. You can set up the equation to find x, the length of the short side. Simplify and solve for x. Subtract 6 from both sides of the equation. Divide both sides by 3. </span><span> The length of the short side is 63 mm The length of the middle side is x+2 = 63+2 = 65 mm The length of the long side is x+4 = 63 + 4 = 67 mm Check: 63+65+67 = 195 mm</span>
The answer to this question is letter C) By segment addition, DC plus BD is equal to BC. Point D is located at the middle of segment BC. Therefore BC is just equal to BD plus DC.
<span>Now we can prove BC2 = BA2+CA2 by using the Pythagorean theorem.</span>
