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Ipatiy [6.2K]
3 years ago
13

A regular polyhedron has 8 vertices and 12 edges how many faces does it have

Mathematics
2 answers:
marusya05 [52]3 years ago
5 0
The described polyhedron has 8 faces.
sammy [17]3 years ago
3 0
Number of vertices = number of faces
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alexandr402 [8]

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(-2,4)

Step-by-step explanation:

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3 years ago
Suppose you have a right triangle area marked in the ground with a base (8-h) meters long and a height h meters long. the hypote
Aleks [24]

Answer:

5.415m and 2.585m long

Step-by-step explanation:

For a right triangle

hyp^2 = opp^2 + adj^2 (Pythagoras theorem)

Given

hypotenuse = 6m

height(opposite) = h meters

Adjacent = (8-h)m

Substitute into the expression above;

6² = h²+(8-h)²

36 = h²+64-16h+h²

36 = 2h²-16h+64

2h²-16h+64-36 = 0

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Divide through by 2

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Using the general formula

h = 8±√8²-4(14)/2

h = 8±√64-56/2

h = 8±√8/2

h = 8±2.83/2

h = 8+2.83/2 and 8-2.83/2

h = 10.83/2 and 5.17/2

h = 5.415 and 2.585

hence the length of the height of the right triangle are 5.415m and 2.585m long

7 0
3 years ago
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