3 years ago

Use the vertical angles theorem to name a pair of congruent angles

1 answer:

5 0

If we have two parallel line cut by a transversal such that the number of the angles are ordered in this manner:
1 | 2
3 | 4
5 | 6
7 | 8
The following the pair of vertical angles
∠1 and ∠4
∠2 and ∠3
∠5 and ∠6
∠7 and ∠8

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3.8 is what in percent 1.9375 is what in percent

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we know 1.9375 is the 100%, what is 3.8 off of it in percentage?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 1.9375&100\\ 3.8&x \end{array}\implies \cfrac{1.9375}{3.8}=\cfrac{100}{x}\implies 1.9375x=380 \\\\\\ x = \cfrac{380}{1.9375}\implies x \approx 196.129$

let's notice that 3.8 is about twice as much as 1.9375.

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