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Lapatulllka [165]

4 years ago

15

The area of a circle 220mm in diameter is approximately how many times greater than the area of a circle 30mm in diameter?

1 answer:

zmey [24]4 years ago

5 0

The first circle is approximately 44 times greater than the second cirle

Radius = 110 mm
110² = 10,000 mm² = Area

Radius = 15 mm
15² = 225 mm² = Area

Hope this helps!

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Can someone pls help me

Irina18 [472]

Answer:

6π Km

Step-by-step explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

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= 2π × 9 × $\frac{1}{3}$

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6 0

3 years ago

Helppppp it’s an emergency!!!!!

Feliz [49]

Answer:

Equation: $2(x+8)+2(3x-5)+23 = 126$

$x = 12.125$ m

$AB = 20.125$ m

$EF=31.375$ m

Step-by-step explanation:

The equation of the perimeter of this shape can be written as: $2(x+8)+2(3x-5)+23 = 126$ (Sides with the same number of dashes are equal in length)

Which becomes:

$2x+16+6x-10+23=126$

$8x+29=126$

$8x=97$

$x= 12.125$

Since AB = $x+8$ , we can substitute to get the length of AB:

$x+8 = 12.125+8$

$=20.125$

We can also use substitution to solve for the length of EF:

$3x-5=3(12.125)-5$

$=31.375$

Hope this helps :)

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3 years ago