I think the answer would just be 12a because -9a? And +9a? Would cancel out and the -10 and +10 would cancel out so all that is left is the 12a
All of them would be true so I would say the answer would be D.
hope that helped.
Answer:
Part A: The scale factor of the dilation that transforms triangle PQR to triangle P'Q'R' is 1/3. This is because triangle P'Q'R is smaller than PQR by 1/3
Part B: The coordinates after P"Q"R" are P"(1, -2) Q"(0, -3) R"(-1, 0)
Part C: No the triangles are not congruent because they are not the same size. If there wouldn't have been a dilation or reflection then it would've been congruent.
Step-by-step explanation:
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Answer:
Sphere = 113.1
Triangular prism = 30
Rectangular prism = 726
Cone = 452.39
Step-by-step explanation:
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C I think is the correct answer