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Luda [366]
4 years ago
10

Which of the following three dimensional objects has a rotational symmetry about a line

Mathematics
1 answer:
torisob [31]4 years ago
7 0

Answer choices:

A. a car

B. a set of rectangular stairs

C. a rolling pin

D. a stapler

The answer is C. a rolling pin

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enot [183]
From the information given you have:

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4) Calculation of the height of the larger triangle, h2


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5) Larger diagonal = h1 + h2 = 6 + 15 = 21


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