8. State the missing reasons in this flow proof. (points)

Given: m25=409 m 2 = 140°

Prove: а ||

→a

2

4

b

m25 = 40°

25 and 2 are supplementary angles

a.

C.

a || 6

M42 = 140°

25 and 2 are same-side interior angles

b

d.

314 units

Step-by-step explanation:

The surface area formula for a sphere is --->

-If the radius is 5 unites, then simply substitute 5 for r

or

In order to solve we need to use order of operations: PEMDAS

We start from right to left

P= Parenthesis ()

E= exponents x²

M= multiplication X

D=divison ÷

A= addition +

S= subtraction -

Now that we know this, we can solve:

Exponents are first - 5² or (5x5) = 25

4(3.14)(25)

Now multiply-  25 X 3.14 = 78.5

                        4 X 78.5 = 314

Therefore the surface area of the sphere is 314 units