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3 years ago

Please help with explanation and show work :)

Mathematics

1 answer:

ANEK [815]3 years ago

3 0

3. A=bh/2
2A=bh
h=2A/b.

8. Dy-Cx=E
Dy=E+Cx
y=(E+Cx)/D

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4 years ago

If the diagonal of a square is approximately 12.73, what is the length of its sides?

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Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

$D^{2} = L^{2} + L^{2}$

Solving further, we have

$D^{2} = 2L^{2}$

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$\frac{D^{2}}{2} = \frac{2L^{2}}{2}$

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Take Square root of both sides

$\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}$

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Reorder

$L = \sqrt{\frac{D^{2}}{2}}$

Now, the value of L can be calculated by substituting 12.73 for D

$L = \sqrt{\frac{12.73^{2}}{2}}$

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3 years ago

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Step-by-step explanation:

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