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Ostrovityanka [42]
3 years ago
11

The point A and B lie on the circumference of a circle with centre O. the area of the circle is 81πcm². The length of the major

arc is 15πcm.
Calculate:

a) The radius of the circle
b) The length of the minor arc, giving your answer in the form lπcm².
c) The acute angle​
Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

Answer:

a)9cm

b)

3\pi

c)60°

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Answer:

  segment EF over segment LM equals segment FG over segment MN

Step-by-step explanation:

The triangles are similar, not congruent, so any answer choice with the word "congruent" can be ignored.

The sequence of letters in the triangle name tells you the corresponding segments:

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Corresponding segments have the same ratio, so ...

  EF/LM = FG/MN . . . . . . matches the first answer choice

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You use a microscope to look at bacteria that is 0.0034 millimeter long. The microscope magnifies the bacteria 430 times. How lo
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If $20,900 is invested at an interest rate of 8 percent per year, find the value of the investment at the end of 5 years for the
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annual

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You make a single deposit of $100 today. It will remain invested for 4 years at 8% per year compounded annually. What will be the future value of your single deposit at the end of 4 years?

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Ben has 2 identical pizzas.
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Let the weight if a whole pizza be x grams

Then 1/4 of a pizza weighs x/4  grams and one eighth weighs x / 8.  The difference is 32 grams so we can make the following equation:-

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