Yeah the points are only 5
First examine with your eyes and if evaluated safe next you use touch. i dont suggest sniffing rocks though.
The Renaissance began in 1300 and ended In 1600
For example, if there is a L shaped sketch and you dimension from the bottom of the L to just above the horizontal part, and then you dimension the vertical part from the end point of the last dimension you'd be okay. But, if you dimensioned both of those lengths and then the total length you would be over dimensioning the sketch.