ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Geometry and Measurement Videos 88 videos
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
SAT Math 1.1 Geometry and Measurement. What is the circumference of the circle?
SAT Math: Geometry and Measurement Drill 1, Problem 2. If A = (0, 4), B = (-3, 2), and C = (1, 0), which point is in the interior of angle ABC?
SAT Math: Working Backwards from a Given Arc Length to Find a Circle's Diameter 5 Views
Share It!
Description:
On a circle, measures 6π meters. If this arc is half the distance around the circle, how many meters is the circle's diameter?
Transcript
- 00:03
Okay it's a trig shmoop er's Here we go Last
- 00:06
in this series on a circle A c measures six
- 00:10
py meters If this arc is half the distance around
- 00:14
the circle how many need er's is the circle's diameter
- 00:21
Okay Interesting Well how unfortunate that there are no figures
Full Transcript
- 00:25
to which we poor budding mathematicians can refer well it
- 00:28
doesn't really matter The ark is half the distance around
- 00:31
the circle So it's half the circumference right So we've
- 00:35
got point five see equals six pie because they gave
- 00:40
us that right All right so then the circumference here
- 00:43
is twelve pie Well now that we have that the
- 00:45
diameter is easy As what Okay circumference is two pi
- 00:50
r twelve pi equals two pi r So six is
- 00:54
are in the diameter is twice the radius right Just
- 00:56
two are so we can multiply our radius there of
- 00:59
six by two and we get that the diameter is
- 01:02
twelve meters Well another way to look at this conference
- 01:04
formulas to just say that it's pai d instead of
- 01:07
two pi r because well that's the same thing And
- 01:10
you got to read all this carefully because they throw
- 01:13
curve balls at you all the time anyway All right 00:01:15.536 --> [endTime] we're done Yeah
Related Videos
The figure above is a square with a side length of . What is the length of ?
If sin[(18d + 12)°] = cos[(7d – 22)°], what is the value of d?
In triangle ΔXYZ, angle Y measures 90°. If , what is the measure of angle Z?
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?