Question 14 (5 points)

You need to make a front elevation drawing of your house. To do this you decide to use a sheet of graph paper. The front of your house is 30 feet across and 18 feet high. What would be an appropriate scale that you should use to make the drawing?

a	Let each square on the graph paper represent 15 feet
b	Let each square of the graph paper represent 6 inches
c	Let each square of the graph paper represent 10 meters
d	Let each square of the graph paper represent 3 feet

Question 15 (5 points)

You need to find the circumference of a sphere. The only measuring instrument you have on hand is a caliper. The caliper reads that the diameter of the sphere is 3.7 cm. Find the circumference of the sphere to the nearest hundredth place. Use = 3.14.

a	10.81 cm
b	11.62 cm
c	11.73 cm
d	11.84 cm

Question 18 (5 points)

You need to find the circumference of a sphere. The only measuring instrument you have on hand is a caliper. The caliper reads that the diameter of the sphere is 2.5 cm. Find the circumference of the sphere to the nearest hundredth place. Use = 3.14.

a	7.14 cm
b	7.58 cm
c	7.85 cm
d	7.93 cm

Question 19 (5 points)

In ancient times, inhabitants of a city would often build walls around the city for protection. They would apply a coating of plaster over the outside wall so that enemy soldiers couldn't count the number of bricks vertically and be able to figure out the height of the wall. If the plaster were missing, is determining the height of the wall by counting the number of bricks vertically an indirect or direct measurement, and for what reason?

a	It is an indirect measure because you can count the number of bricks.
b	It is an indirect measure because you can't go up to the wall and use a ruler to measure the height.
c	It is a direct measure because you can't go up to the wall and use a rule to find the height.
d	It is a direct measure because you can see the number of bricks and count them.

Question 20 (5 points)

You need to make a scale drawing of a house. The dimensions of the house are known and the scale to be used is known. The drawing needs to be made so that future changes or additions to the house are easily changed on the drawing at a later date. The drawing needs to show the exterior of the house and the drawing needs to be easily stored and printed if the need arises. What is the best appropriate method to make the representation drawing?

a	Make a scale drawing on a large-sized piece of paper
b	Make a scale drawing on a computer using an appropriate program or software
c	Make a model using cardboard boxes and cubes
d	Sketch a drawing on a "sticky note"