How do you do two coulmn proofs in geometry ?

1 answer:

5 0

Number each step.Start with the given information.Statements with the same reason can be combined into one step. It is up to you.Draw a picture and mark it with the given information.You must have a reason for EVERY statement.The order of the statements in the proof is not always fixed, but make sure the order makes logical sense.Reasons will be definitions, postulates, properties and previously proven theorems.

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Need help badly don’t have answer to this problem.

NikAS [45]

There are a couple of ways to tackle this one, using the 45-45-90 rule or just using the pythagorean theore, let's use the pythagorean theorem.

the angle at A is 45°, and its opposite side is BC, the angle at C is 45° as well, and its opposite side is AB, well, the angles are the same, thus BC = AB.

hmmm le'ts call hmmm ohh hmmm say z, thus BC = AB = z.

$\bf \textit{using the pythagorean theorem}
\\\\
c^2=a^2+b^2 \implies (6\sqrt{2})^2=z^2+z^2
\qquad 
\begin{cases}
c=\stackrel{6\sqrt{2}}{hypotenuse}\\
a=\stackrel{z}{adjacent}\\
b=\stackrel{z}{opposite}\\
\end{cases}\\\\\\ 6^2(\sqrt{2})^2=2z^2\implies 36(2)=2z^2\implies \cfrac{36(2)}{2}=z^2\implies 36=z^2
\\\\\\
\sqrt{36}=z\implies 6=z$

4 0

3 years ago

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Can someone help me with these? Pls Answer ill mark Brainliest

Nat2105 [25]

Answer:

Step-by-step explanation:

3 0

2 years ago

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Amanda makes colored paper cone cups to serve nuts at a charity event. The height of each paper cone is 15 centimeters, and the

allsm [11]

Answer:

$V=261.80 \ cm^3$

Step-by-step explanation:

-The volume of a cone is given by the formula:

$V=\pi r^2 \frac{h}{3}$

Where:

r is the cone's radius.
h is the cone's height.

#We substitute for r and h in the formula to solve for V:

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi \times 5^2\times 10\\\\=261.80\ cm^3$

Hence, the each cone's volume is $261.80 \ cm^3$

8 0

3 years ago

Can anyone explain how to solve this?

eduard

I’m not 100 percent sure someone can comment on this and confirm but when it’s written like a fraction it means division. If they gave you the meaning of each variable (the letters) multiply each variable by each coefficient (the number next to the variable). Multiply all of those. Then divide it by the product of 4 and the variable

Hope this helped!

8 0

2 years ago

Find an equation of the line: through the point (2, −4) with a y-intercept of −2. PLEASE HELP ONLY HAVE 20 MINUTES

Ber [7]

Answer:

Y=-x-2 or Y=-1x-2

Step-by-step explanation:

5 0

3 years ago