How do i find the circumference of a circle when the given radius is 3 1\2 cm, answers in terms of π ​

Circumference of circle is 97.42cm.

Step-by-step explanation:

Here we have given that A circle with having radius 31 / 2 cm. And We need to find circumference of circle.

Formula using

Circumference of circle = π × 2 × radius

substitute the value

Circumference of circle = π × 2 × 31 / 2 cm

cancle the 2

Circumference of circle = π × 31 cm

Using π = 22 / 7

Hence, Circumference of circle is 97.42cm.

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.