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I need to know if A and C is right or not and i need help with B

I need to know if A and C is right or not and i need help with B-example-1
User Cameal
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1 Answer

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B: enclosing rectangle is 9×6=54. Then subtract 2 triangles tha together are 6x7=42. 54-43=12.

C. seems to me just 6x4=24.
User Ilia Akhmadullin
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