Trigonometry
a central angle of 2 radians cuts off an arc of length 4 inches. find the area of the sector formed.
i was wonder if the answer would be 8^2 or something like that. if i am totally wrong.
you.

The area of the sector formed if the central angle of 2 radians cuts off an arc of length 4 inches is approximately 4 inches

The formula for calculating the length of an arc is expressed as:

Get the area of the sector formed using the formula:

Hence the area of the sector formed is approximately 4 inches

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a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional