Answer:
its a prism
Step-by-step explanation:
to find area of all the sides, you multiply the bottom and top measurements.
12 x 7 is 84cm
12 x 9 is 108
9 x 7 is 63
for surface area, add the area of all the faces
63x2+108x2+84X2=510
volume is length x width x hight
12 x 9 x 7 = 756
It is a Cuboid
Area of the base = 12x9
Area of the top = 12x9
Area of the right lateral faces = 9x7
Area of the left lateral faces = 9x7
Area of the front face = 12x7
Area of the rear face = 12x7
Total surface area is the sum of above (please do it yourself)
The volume = base surface Area x height
= 12x9x7 = 756
Be reminded to put in the right unit for Area and volumn
x = 5 and y = 22
See attached image.
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