A hedge has been trimmed to look like a cone (birthday party hat). The circumference of the base of the hedge is 2m. The angle between the base of the hedge and the point at the top is 75°. What is the height of the hedge? (Answer: 1.19m) If you are having trouble visualizing the problem, check out this video.

calculation of densities and calculate the percent of error

How does density differ from mass? Mass decreases as density increases. Density is the mass of an object. Density is a per-volume metric of mass. Mass is a per-volume metric of density.

Measurements with a Vernier Caliper In the example figure below, the first reading is 1.9 cm or 19 mm. The hundredths of mm or Vernier Scale is then read by counting the number of divisions until you get to the division that lines up with the main metric scale. This is 32 divisions on the hundredths scale. This 32 is multiplied by 0.02 giving 0.64 mm as the answer (Remember that each division on the hundredths scale is equivalent to 0.0 2mm). This means that the length we have measured corresponds to 19.64 mm. By V.Ryan 19 MAIN METRIC SCALE By V.Ryan 3 MAIN METRIC SCALE 2 4 [3↓ 32 DIVISIONS Read and Record the Verniers in centimeters and millimeters in the blank provided. MAIN METRIC SCALE 5 6 HUNDREDTHS OF mm 19 +32 X 0.02 19 +0.64 19.64mm (final answer) 5 HUNDREDTHS OF mm 5 By V.Ryan 6 7 Record cm here: Record mm here: Record cm here: Record mm here: HUNDREDTHS OF mm 11