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Semenov [28]
3 years ago
6

Suppose that circles A and B have a central angle measuring 100°. Additionally, the measure of the sector for circle A is 10π m2

and for circle B is 40π m2. If the radius of circle A is 6 m, what is the radius of circle B?
Mathematics
2 answers:
lesya692 [45]3 years ago
5 0
We know that
When circles have the same central angle measure, the ratio of measure of the sectors is the same as the ratio of the radii squared<span>.
</span>so
rA²/rB²=A/B
where
rA-------> radius circle A
rB------> radius circle B
A------> area sector A
B------> area sector B
rB²=B*rA²/A-------> 6²*[40π]/[1<span>0π]-------> 144--------> rB=</span>√144
rB=12 m

the answer is
radius of circle B is 12 m
kolezko [41]3 years ago
4 0

Answer:

the answer would be 12m

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
1. Ima Thief robs a bank and takes off in a getaway car. Five minutes Polly Srule takes off after Ima.
chubhunter [2.5K]

Answer:

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Step-by-step explanation:

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2 years ago
Find the value of x.
konstantin123 [22]

Answer:

x= 37.5°

Step-by-step explanation:

∠CBD

= 180° -75° (adj. ∠s on a str. line)

= 105°

∠BCD= ∠BDC (base ∠s of isos. △BCD)

∠BCD= x

∠BCD +∠BDC +∠CBD= 180° (∠ sum of △BCD)

x +x +105°= 180°

2x= 180° -105°

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<u>Alternative</u><u> </u><u>working</u><u>:</u>

∠BDA= (180° -75°) ÷2 (base ∠s of isos. △ABD)

∠BDA= 52.5°

∠BDA +∠BDC= 90°

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x= 90° -52.5°

x= 37.5°

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