Answer:
Height = 5 ft
Short base = 10 ft
Long base = 14 ft
Step-by-step explanation:
Let h = height, a = short base, b = long base.
From the question,
a = 2h
b = a + 4 = 2h + 4
The area of the trapezoid is given by
. Thus,







or 
or 
We discard the negative value of h since it is a measurement and cannot be negative.

Answer:
its A
Step-by-step explanation:
Hello!
To find the surface area of a cube you do

where "a" is the length of one of the sides.
So

= 1350
the answer is 1350mm

Hope this helps!
3(-6+2)
3(-4)
12
;( the correct