Answer:
I believe the scale factor is 2.
Answer:
Step-by-step explanation:-12x=2
X=-12/2
X=-6
Answer:

Step-by-step explanation:
We have two triangles and three rectangles.
The formula of an area of a triangle:

b - base
h - height
The formula of an area of a rectangle:

l - length
w - width
TRIANGLE:
b = 11 in, h = 7 in

RECTANGLE 1:
l = 11 in, w = 14 in

RECTANGLE 2:
l = 9 in, w = 14 in

RECTANGLE 3:
l = 8 in, w = 14 in

The Surface Area:

Substitute:

Answer:
Step-by-step explanation:
Find the area of the regular 18-gon with radius 10 mm