ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
TSI Mathematics Videos 144 videos
What is the equation of the line graphed above?
A line passes through the point (-4, -4) and has a slope of . What is its equation?
Line A has an x-intercept of -4 and a y-intercept of 8. What is its slope?
TSI Math: Understanding How Dilation Affects a Shape's Perimeter 1 Views
Share It!
Description:
The triangle shown above is dilated by a factor of 3. What is its perimeter after the transformation?
Transcript
- 00:02
Okay sy mash members we've got a lovely little triangle
- 00:05
for you here and it's a special ones you khun
- 00:07
tell We got eight and then sixteen sixteen so it's
- 00:09
i sasa lease and a couple other things alright question
- 00:12
The triangle shown above is dilated by a factor of
Full Transcript
- 00:14
three Yeah it's giving birth What is its perimeter After
- 00:18
the transformation Perimeter after dilation Well if we drew a
- 00:27
triangle on a balloon and inflated it the triangle would
- 00:30
be stretched out which essentially what happens with a dilation
- 00:35
tried out Just don't get blue in the face from
- 00:38
blowing up the balloons In this case strangles dilated by
- 00:40
a factor of three which means all sides become three
- 00:43
times as long was multiplying All three right so three
- 00:46
times sixteen forty eight three times sixteen Still forty eight
- 00:49
three times eight is twenty four right so we could
- 00:52
just add all those up or if we were a
- 00:54
little bit more clever we could have just added the
- 00:56
sixteen sixteen to thirty two and a that's forty Multiply
- 00:59
it by three and you get one twenty and that's
- 01:01
it The answer is c as in the simulator we
- 01:04
came we shmoop
Related Videos
Which is the best way to revise and combine sentences 1 and 2?
Where would the following sentence best be placed?
Which of the following is best to insert at the beginning of sentence 8?
Which is the best location for sentence 9?
Which of the following sentences is best to insert between sentences 11 and 12?