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daser333 [38]
3 years ago
11

How do I prove that a quadrilateral is a rectangle?

Mathematics
2 answers:
erica [24]3 years ago
8 0
There are a few criterias...
One angle is a right angle
Two pairs of opposite sides that are congruent
Congruent diagonals
Opposite sides are parallel...

Hope this helps please give me a 5-rate, thanks, and brainliest!
maw [93]3 years ago
7 0
I think you want to prove that a rectangle is a quadrilateral. You can prove this with definitions. The definition of a quadrilateral is that it is a shape with four sides. Since a rectangle has four sides, that proves that a rectangle is a quadrilateral. 
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Are the following rational or irrational?
Scilla [17]

\sqrt[3]{25}-\text{irrational}\\\\\sqrt[3]{64}=4\ because\ 4^3=64-\text{rattional}\\\\\sqrt[3]{125}=5\ because\ 5^3=125-\text{rattional}

7 0
3 years ago
A company's prospectus includes:
NeTakaya

A company's prospectus includes: A) The company's investment options.

<h3>What is a company's prospectus?</h3>

Company's prospectus can be defined as the document that entails  detail information of a company investment option that are available for sales to potentials buyers or investors.

Examples of the investment options are:

  • Bonds
  • Stocks
  • Mutual Funds etc

Therefore the correct option is A.

Learn more about company's prospectus here:brainly.com/question/27245796

#SPJ1

A company's prospectus is a formal legal document designed to provide information and full details about an investment offering for sale to the public.

3 0
2 years ago
Please help work out this problem. Answer is below.. Just need help doing it step by step.
sweet [91]
S=<span>πr + πre
s=r(</span>π+πe)
r=2/π(e+1)
8 0
3 years ago
A sphere with a radius of 6cm has the same volume as a cylinder with a height of 4.5cm. What is the radius of the cylinder
yawa3891 [41]
Short answer: r = 8
Remark
The easiest way to do this is to solve the sphere's volume in terms of pi. When you do this, you can equate that to the formula for a cylinder and cancel the pi values. 

Step One
Find the volume of the sphere.

<em>Givens</em>
r = 6 cm

<em>Formula</em>
V = (4/3) pi r^3

<em>Sub and Solve</em>
V =  4/3 pi * 6^3
V = 288 * pi

Step two 
Find the radius of the cylinder

<em>Givens</em>
V = 288* pi cm^3
h = 4.5 cm

<em>Formula</em>
V = pi r^h

<em>Sub and solve</em>
288 pi cm^3 = pi r^2 * 4.5    Divide both sides by pi
288 cm^3 = 4.5 r^2              Divide both sides by 4.5
388 / 4.5 = r^2
64 = r^2                                Take the square root of both sides.
r = square root( 64)
r = 8 <<<<< Answer

4 0
3 years ago
A chess piece is 15 centimeters tall, and its shadow is 13 centimeters long. How far away is the top of the chess piece from the
Lesechka [4]

Answer:

19.8 cm

Step-by-step explanation:

Using the Pythagorean theorem , the Square of the distance between the top of the piece and the Shadow Is the sum of the height of the piece. and the lenght of the shadow. basically Just build a triangle with the 3 points you are given: height of the piece, lenght of the shadow and distance between the 2. so it's sqrt(13^2+15^2) = sqrt(394) =19.8 cm

6 0
3 years ago
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