Answer:
A. m is on line l
Step-by-step explanation:
Because collinear means on the same line
The surface area of door is 33 680 cm².
Given that the surface area of a cuboid which is the 3D of rectangle is :
3/2
Basically just multiply 1/2 by numbers.
1/2 * 2 = 1
1/2 * 3 = 3/2
1/2 * 4 = 2
1/2 * 5 = 5/2
And so on.
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