Will mark brainliest! lots of points

7 1/5 cm

Step-by-step explanation:

45/27 = 12/x

x = 12*27 / 45

x = 324/45

x = 7 9/45

= 7 1/5

The new width is 20

Step-by-step explanation:

w = 45

h = 27

We want the height to be 12

We can use proportions to find the new dimensions

w        w old      w new

= =

h         h old        h new

45           w new

=

27            12

Using cross products

45*12 = 27 * w new

540 = 27 w new

Divide by 27

540/27 = 27 w new/27

20 = w new

The new width is 20

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation: