lawrencemadisopdb8ld lawrencemadisopdb8ld

16-11-2018
Mathematics

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What is the volume of the pyramid?

A. 139 cm3
B. 484 cm3
C. 142 cm3
D. 420 cm3

What is the volume of the pyramid A 139 cm3 B 484 cm3 C 142 cm3 D 420 cm3 class=

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wegnerkolmp2741o wegnerkolmp2741o

16-11-2018

V = 1/3 B * H where B is the area of the base and H is the height

to find the base , we find the area

B = s^2 where s is the side length

so

V = 1/3 s^2 *H

V = 1/3 * 11^2 * 12

V = 1/3 * 121 * 12

V = 484 cm^3

Choice B

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