Nancy
Powell's Web Pages
for Students, Parents, and Teachers!
Word Problems with
p
Pi Day
Word Problems
Solve as many
problems as you can…Record your answers below. Each problem solved is
worth 2 points! Show your work…
A string is
wrapped around the equator (radius=r). You cut it and splice in an
extra yard and make a new circle above the equator. Which of the
following animals could fit under the resulting circle? A mouse, a
miniature dachshund, a German Shepherd, a horse, or a giraffe.
Support your answer with calculations.
Captain
Snorkel is supervising the construction of his new tourist submarine.
The sub design calls for the installation of 20 round view ports with
each view port being 19 inches in diameter. How many square feet of
transparent material will be included in the view ports? ______ square
ft
Mr.
Bloop is rolling small steel disks down a ramp. Each disk is 4 cm in
diameter and 5 mm thick. It takes 7 seconds to go down the ramp and the
distance traveled from the top to the bottom of the ramp is 119 cm. How
many revolutions does a disk make on the way down? Round your answer to
the nearest hundredth.
Devin
made seven pepperoni pizzas for a party. He cut the pepperoni himself
from a sausage that was 13 inches long and 1 3/4 inches in diameter. The
pizzas were each 14 inches in diameter. His friend Taylor is a real math
whiz and took the opportunity to calculate what percent of the total
pizza surface area was covered by pepperoni. The pepperoni was cut into
slices 1/4 of an inch thick. Each pizza has the same number of whole
pepperoni slices (he ate any extra pepperoni!). What percent of the
total pizza surface area was covered by the pepperoni? Round your answer
to the nearest hundredth.
A coil
of wire was found lying in the shipyard. Megan wondered if it would be
enough to temporarily hold some steel plates in position while they were
being welded. The wire was braided steel 1-cm thick. The coil was neatly
wound in a single layer around a wooden spool 1.3 meters in diameter.
The wire spanned a distance of 56 cm on the spool. She needed 365 meters
of wire to do the job. Find the length of the wire to support
your answer to the following question:
Is the coil of wire long enough for her purposes?
