Apiece of solid, spherical glass has a circumference of 18.84 centimeters. the sphere is cut in half, creating two identical hemispheres. using 3.14 for π, tran computes the amount of paint needed to cover the sphere. which statement about the amount of paint found by tran is true? tran found the minimum amount of paint needed to cover the curved surface of a hemisphere tran found the minimum amount of paint needed to cover the entire surface of one of the hemispheres. tran found the minimum amount of paint needed to cover both hemispheres. tran found the minimum amount of paint needed to cover the bases of both hemispheres.

The statement about the amount of paint found by Tran is true is:

        Tran found the minimum amount of paint needed to cover both hemispheres.

As we know that the amount of paint that will be required to paint the sphere is equal to the curved surface area of the sphere also as the sphere is cut into two equal hemispheres hence the paint required to paint the sphere is equal to the curved surface area of two hemispheres.

As the sphere is to be painted from outside this means that both the hemispheres are painted from outside.

Hence, the amount of paint required is equal to : 4πr²

( Since the curved area of sphere is: 4πr² )

This option is incorrect.

Since, the curved surface area of a hemisphere=2πr²≠4πr²

This option is incorrect.

Since the total surface area of one hemisphere= 3πr²≠4πr²

This is the correct option.

Since, The amount of paint required to paint both the hemisphere is:

 2πr²+2πr²=4πr²

This option is incorrect.

Since in order to cover the vase of both hemispheres the amount of paint required is:

         πr²+πr²=2πr²≠4πr²

( Since the surface area of base is: πr² )

           Hence, the correct answer is

Tran found the minimum amount of paint needed to cover both hemispheres.

215.92 dollars is the answer

9) i can't see the angle so whatever it is just do this: cos(angle) x hypotenuse and then use that answer and they hypotenuse and plug it into this: (answer you just got)^2 + b^2 = (hypotenuse)^2. the first answer will be the answer of the adjacent side and the second answer after this equation will be the opposite side.

10) y = 14 x = √147 or 12.12435565

11) x = 4.8

12) x = 4.2

13) x = 9.3

14) pq: 13.2

qr : 17.6

angle p: 53º

15) angle c: 54.3º

angle a: 35.7º

16) h = 21040

v = 1841

step-by-step explanation:

10) 7/sin(30) = 14 = y

7^2 + b^2 = 14^2

49 + b^2 = 196

b^2 = 196 - 49

√b^2 = √147

x = √147

11) cos(70) x 14 = 4.788282007

x = 4.8

12) tan(25) x 9 = 4.196768923

x = 4.2

13) sin(31) x 18 = 9.270685348

x = 9.3

14) pq: sin(37) x 22 = 13.23993051

pq: 13.2

qr: cos(37) x 22 = 17.56998122

qr : 17.6

angle p: 180 - (37 + 90) = 53º

15) cos-1(7/12) = 54.31466529

angle c: 54.3º

angle a: 180 - (90 + 54.31466529) = 35.68533471

angle a: 35.7º

16) 4 x 5280 = 21120

cos(5) x 21120

h = 21039.63202

h = 21040

sin(5) x 21120

v = 1840.729287

v = 1841