Explain how a square is a recttangle

Mathematics

2 answers:

Katen [24]3 years ago

8 0

I agree
I was gonna say the same thing

maw [93]3 years ago

4 0

Answer:

a square is a rectangle as it's a shape with 4 sides with 90degree angles, and pairs of sides are equal.

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A. square root property

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it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format

B. factorising

$x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0 and x-3=0\\x= -2 \\x= 3$

i just felt like this was easier to factorise than the other 2 options left

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$x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7$

same reason personal preference

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$x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402$

the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal

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The diameter of a circle is two times its radius. Which

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I can’t type it out but the equation is Pi(radius)^2

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