3 years ago

Proportions in Triangles (2)

Mathematics

1 answer:

forsale [732]3 years ago

6 0

Answer:

x = 6

Step-by-step explanation:

An angle bisector divides the segments on either side of it so they are proportional. That is ...

x/12 = 5/10

x = 12(5/10) = 6 . . . . . multiply by 12

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Answer:

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Step-by-step explanation:

For a cube with length of each side "a" , it's

Total Surface Area = 6a²
Volume = a³

_____________________________________________

According to the question ,

Total Surface Area = 1014 cm²

Let the length of each side of cube be 'a'.

Using the formula ,

$6a^{2} =1014$

$=> a^{2} =\frac{1014}{6} = 169$

$=> a = \sqrt{169} = +13 \: or -13$

But length can't be negative . So , length of each side = 13 cm

∴ Volume of cube = 13³ = 2197 cm³

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