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PSAT 1.33 Math Diagnostic 176 Views


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Description:

PSAT 1.33 Math Diagnostic. What is the approximate measure of arc AB in radians?

Language:
English Language

Transcript

00:00

Sorry And here's your shmoop du jour brought to you

00:04

by the hour to cleo monument that was erected to

00:08

celebrate the triumph of circles throughout history Something like that

00:13

What All right check out this figure Alright Circle ama

00:15

shone above what is the approximate measure of our a

00:19

b in radiant and hear the potential answers So wait

00:24

Panic is setting in how we spoke to come up

00:26

with an answer when there are no numbers given in

00:28

the problem where have the number's gone Who's taken our

00:31

numbers Okay Sorry We had a bit of a freak

00:34

out moment But we just took a sip A warm

00:36

milk and it's calmed us somewhat The angle in the

00:39

diagram is labeled as forty five degrees Well boom There

00:42

we go Breathing normally again Really wish we would have

00:45

spotted that earlier Since the angle in the diagram is

00:48

a central angle In other words it originates in the

00:51

exact center of the circle We know that the intercepted

00:54

our baby has the same measure Forty five greece Hopefully

00:58

we also know that for all circles to pi radiance

01:00

is three hundred sixty degrees Do if we want to

01:03

Convert forty five degrees to radiant weaken Simply multiply it

01:07

by two pi and five by three sixty or if

01:09

you want to keep things simpler which we probably do

01:12

by both of those by two from the get go

01:14

since it'll cancel anyway then multiplied by pod and then

01:18

divide by one eighty Okay forty five times Five divided

01:20

by one Eighty comes out to a foul falling seven

01:23

eight five five which one round to the nearest hundredth

01:26

is point seven Nine Radio answer b If you have

01:30

any other questions please ask us soon visiting hours and 00:01:32.947 --> [endTime] in that team

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