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Geometry 6 Online
OpenStudy (anonymous):

In circle P, BC = 24 ft. What is the length of ABC?

OpenStudy (anonymous):

OpenStudy (anonymous):

hey @megsweg19 !

OpenStudy (anonymous):

hi! @tylermcmullen23 !

OpenStudy (anonymous):

ok to find the measurement, do 2*pi*12*330/360

OpenStudy (anonymous):

69.08

OpenStudy (anonymous):

well, i got 69.1 using regular pi, but still! yes

OpenStudy (anonymous):

For abc?

OpenStudy (anonymous):

or apc?

OpenStudy (anonymous):

abc

OpenStudy (anonymous):

|dw:1427284634894:dw|

OpenStudy (anonymous):

the formula is 2*pi*r*central angle/360

OpenStudy (anonymous):

so now that I have 69.1 what do I do?

OpenStudy (anonymous):

thats your answer!

OpenStudy (anonymous):

that's not an option for an answer

OpenStudy (anonymous):

33p 11p 22p 44p

OpenStudy (anonymous):

then divide 69.1 by pi

OpenStudy (anonymous):

22p

OpenStudy (anonymous):

you get 22p

OpenStudy (anonymous):

The ratio of the length of the corresponding sides of two rectangles is 5:8. The area of the smaller rectangle is 130 m2. To the nearest whole number, what is the area of the larger rectangle?

OpenStudy (anonymous):

answer options are 333 m2 19 m2 129 m2 32 m2

OpenStudy (anonymous):

divide 8 by 5 then multiply 26

OpenStudy (anonymous):

I got 41.6?

OpenStudy (anonymous):

then multiply that by 8

OpenStudy (anonymous):

332.8 so im guessing you round it to 333 m2?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Find the area of the kite

OpenStudy (anonymous):

48 ft2 144 ft2 288 ft2 96 ft2

OpenStudy (anonymous):

do 8*12

OpenStudy (anonymous):

96

OpenStudy (anonymous):

then do 8*6 and add the 96 to that

OpenStudy (anonymous):

144

OpenStudy (anonymous):

thx so much you are a life saver

OpenStudy (anonymous):

no problem!

OpenStudy (anonymous):

A metal washer is made by cutting out a circle 13.2 mm in diameter from a larger circle. To the nearest tenth, what is the area of the washer?

OpenStudy (anonymous):

547.1 mm2 972.6 mm2 243.3 mm2 60.8 mm2

OpenStudy (anonymous):

first, do 4.4*2

OpenStudy (anonymous):

8.8

OpenStudy (anonymous):

then add that to 13.2

OpenStudy (anonymous):

22

OpenStudy (anonymous):

divide that by 2 to get the radius (11) and then put that to the power of 2

OpenStudy (anonymous):

121?

OpenStudy (anonymous):

multiply that by pi

OpenStudy (anonymous):

379.94?

OpenStudy (anonymous):

wait, is it supposed to be in pi form?

OpenStudy (anonymous):

no its in milimeters

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

ok well now, divide 13.2 by 2 to get the radius of the hole, which is 6.6. square that by 2 to get 43.56 then multiply that by pi to get 136.77, subtract that from 379.94

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