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3 years ago

Which statements are true about the regular polygon? Check all that apply.

Mathematics

2 answers:

iVinArrow [24]3 years ago

6 0

2) Each interior angle measures 108°------> is true

3) All of the angles are congruent---------> is true

5) The sum of the measures of the interior angles is 180(5 – 2)°----> is true

That is what I got on this question but I bet it has different answers generated

-BARSIC- [3]3 years ago

4 0

It’s not hard it’s ok

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Vhat is the total surface area of the square pyramid below? 14 cm 10 cm 10 cm

Ronch [10]

Answer:

See below.

Step-by-step explanation:

$SA=2bs+b^2$

$SA=2(10)(14)+10^2$

$SA=20(14)+100$

$SA=380cm^2$

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3 years ago

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Ierofanga [76]

Answer:

s = 4

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2 years ago

I need help plz 10 points

Vaselesa [24]

Answer:

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Step-by-step explanation:

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3 years ago

The radius of a circle is 11 cm. Find the circumference to the nearest tenth

Rainbow [258]

Answer:

69.1 cm (nearest tenth)

Step-by-step explanation:

Circumference of circle= 2πr, where r is the radius.

Given that r= 11 cm,

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= 2(π)(11)

= 22π

= 69.1 cm (nearest tenth)

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3 years ago

A web page designer creates an animation in which a dot on a computer screen has a position of r⃗ =[ 4.2 cm +( 2.5 cm/s2 )t2]i^+

tankabanditka [31]

we are given

$r(t)=(4.2cm+(2.5cm/s^2)t^2)i+(5.5cm/s)tj$

Firstly, we will plug t=0 and t=2

Calculation of r(0):

$r(0)=(4.2cm+(2.5cm/s^2)*0^2)i+(5.5cm/s)*0j$

$r(0)=4.2i+0j$

Calculation of r(2):

$r(2)=(4.2cm+(2.5cm/s^2)*2^2)i+(5.5cm/s)*2j$

$r(2)=(4.2+5)i+(11)j$

$r(2)=(9.2)i+(11)j$

Average velocity:

now, we can use formula

$v=\frac{r(2)-r(0)}{2-0}$

now, we can plug values

$v=\frac{((9.2)i+(11)j)-(4.2i+0j)}{2-0}$

$v=\frac{5i+11j}{2-0}$

$v=(2.5cm/s) i+(5.5cm/s)j$ ..............Answer

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3 years ago