3 years ago

A stero in the shape of a triangle pyramid has a height of 6 inches The area of the base of the speaker is 11 square inches

Mathematics

2 answers:

horsena [70]3 years ago

8 0

Answer: 22 inch

Step-by-step explanation:

artcher [175]3 years ago

8 0

Answer:

22 inches

Step-by-step explanation:

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Lera25 [3.4K]

B is the midpoint

$\\ \sf\longmapsto AB=\dfrac{1}{2}AC$

$\\ \sf\longmapsto 7x-3=\dfrac{5}{2}$

$\\ \sf\longmapsto 5=2(7x-3)$

$\\ \sf\longmapsto 5=14x-6$

$\\ \sf\longmapsto 14x=6+5$

$\\ \sf\longmapsto 14x=11$

$\\ \sf\longmapsto x=\dfrac{11}{14}$

$\\ \sf\longmapsto x=7.8$

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Step-by-step explanation:

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Yakvenalex [24]

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