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Two rectangular pyramids were joined at their bases to form the composite figure. What is the surface area of the figure? 1,025 cm2 1,175 cm2 1,325 cm2 2,050 cm2
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Jun 15, 2019
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Two rectangular pyramids were joined at their bases to form the composite figure.
What is the surface area of the figure?
1,025 cm2
1,175 cm2
1,325 cm2
2,050 cm2
Mathematics
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Atirit
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Answer:
If your on Ed, it's 1020.
Explanation:
Foreign Object
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Jun 17, 2019
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Foreign Object
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we know that
surface area of pyramid=area of the base+[area lateral triangle sides]
in this problem
the base area is not considered
so
surface area smaller pyramid=2*[15*16.4/2]+2*[10*17.3/2]
surface area smaller pyramid=246+173-----> 419 cm²
surface area larger pyramid=2*[15*23.8/2]+2*[10*24.9]
surface area larger pyramid=357+249-----> 606 cm²
surface area of the figure=419+606-----> 1025 cm²
the answer is
the surface area of the figure is 1025 cm²
Swalih
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Jun 22, 2019
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Swalih
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