Question

1. carpenters take readings of elevations, directions and lengths of property lines using a levelling rod. the red numbers on the rod represent the number of feet, and the black numbers represent tenths of a foot.

record the readings below. the first one has been done for you.
note: the red numbers are larger than the black numbers when they mark an even number of feet (e.g., 3.0 feet), but smaller when they appear as “reminders” in between.
5 feet
a.
b.

Explanation:

Step1: Identify reading for a.

The red line aligns with black 3 (feet) and red 7 (tenths). So reading is $3 + 0.7 = 3.7$ feet.

Step2: Identify reading for b.

The red line aligns with black 1 (feet) and red 5 (tenths). So reading is $1 + 0.5 = 1.5$ feet.

Answer:

a. 3.7 feet
b. 1.5 feet