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Brut [27]
3 years ago
14

Please help brainliest and 50 points for whoever answers all of these first

Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

my laptop doesnt let me download pdf :/

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A circle has a circumference of 450cm
anzhelika [568]

The circumference of the circle is actually the perimeter ( length of the boundary ) of the circle . And a part of the circle which lies between two distinct points on the circumference of the circle is called an arc . If the length of the arc is less than half the circumference , it is called minor arc and remaining portion which is more than half of the circle ( but natural ) is called major arc .

When these two points , which make the arc are joined separately to the centre of circle , these arms make angle at the centre . This is called the angle subtended by the arc at the centre of the circle .

There is a beautiful logical relation exists between arc length and the angle , the arc makes ( subtends ) at the centre of the circle . This relation is as under , the wholle circle subtends an angle of 360 degree at the centre . Half the circumference subtendr 360 / 2 ie 180 degree at the centre . The logical relation becomes Arc Length = Circumference × angle in degrees it ( the arc ) subtends at the centre of the circle / 360 degree . So the answer is very simple :- The Arc Length = 36 × 90 / 360 or 9 units ( may be centimetres or metres or inches , feet , yards , etc ) . Which is definitely length of the minor arc . The length of the major arc ( remaining portion of the circumstance ) is 36 - 9 = 27 units . Hence the required answer of the sum is 9 units .

3 0
2 years ago
Read 2 more answers
3. What is wrong with the following statement? If d/e = f, then d multiplied by f = e.f should be divided by e.F and e should be
Molodets [167]

the initial statement is:

\frac{d}{e}=f

and then:

d\cdot f=e

So the second statement is false because f should be multiply by e, not by d so is option C)

4 0
1 year ago
Find the area of the triangle.
nlexa [21]

Answer:

22.5 i thiink

Step-by-step explanation:

9,4,5.     12

18

o24

which means it is...

look at the answer

4 0
3 years ago
Read 2 more answers
If y = x3 - 3 , find the value of y when x = -2
Contact [7]
Y = (-2)3 - 3
Y = -6 - 3
Y= -9
8 0
3 years ago
PLEASE HELP AND PLEASE DON'T GUESS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111
vaieri [72.5K]
The correct answer is b because the number increases by 4 every time 
hope I helped
5 0
3 years ago
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