2. Line A passes through the points (0,-5) and (12,1). Line b passes through the points (0,-4) and (10,1).
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Shaded circles = 4
Total circles = 12
= 
as a simplified expression = 
We can simplify it even more =
Fraction =
Equivalent decimal = 1 ÷ 3 = 0.33
Total circles = 12
We can simplify it even more =
Fraction =
Equivalent decimal = 1 ÷ 3 = 0.33
Given:
x = 12 in, y = 16 in and z = 20 in
To find:
The surface area of the geometric shape.
Solution:
Area of top rectangle = z × z
= 20 × 20
Area of top rectangle = 400 in²
Area of middle rectangle = z × y
= 20 × 16
Area of middle rectangle = 320 in²
Area of bottom rectangle = z × x
= 20 × 12
Area of bottom rectangle = 240 in²
Area of left triangle =
Area of left triangle = 96 in²
Area of right triangle =
Area of right triangle = 96 in²
Surface area = 400 + 320 + 240 + 96 + 96
= 1152
The surface area of the geometric shape is 1152 in².