You can use the formula A = C/4 to find the area of a circle given the circumstance. Describe another way to find the area of a circle when given the circumstance. Help please!

Step-by-step explanation:

Given

Required

Describe another way to get area from circumference

Circumference C is calculated using:

Area, A is calculated using:

Using:

Divide both sides by 2

Multiply both sides by r

The expression on the right-hand side is the area.

So, substitute for A

Reorder

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: