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AmityHeart
01.07.2019 •
Mathematics
Is - 1 half n + 1 whole 1 half + 3 - n equivalent to 3
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Ответ:
Yes. It is equivalent to 3. Combine like terms
Ответ:
178.3 mm²
Step-by-step explanation:
Surface area = Base area + 3 x side triangles area
Sₐ = 43.3 + 3 x (1/2 x (10 x 9)) = 43.3 + (3 x 45) = 178.3