Using Geometry to Solve Design Problems
Geometry · Flashcards
GEOMETRY · FLASHCARDS
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QUESTION
Identify the scale factor if
3
3
3
cm on a blueprint represents
150
150
150
cm in reality.
QUESTION
Find the new volume if a solid is scaled by factor
k
=
2
k = 2
k
=
2
and original volume is
15
15
15
.
QUESTION
Find the surface area of a sphere with radius
2
2
2
for coating material estimation.
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ANSWER
Surface area
=
16
π
= 16\text{π}
=
16
π
. Sphere surface area:
S
A
=
4
π
r
2
=
16
π
SA = 4\pi r^2 = 16\pi
S
A
=
4
π
r
2
=
16
π
.
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