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2 years ago

8

What is the perimeter of rectangle GHIJ

1 answer:

Leno4ka [110]2 years ago

8 0

Is there a picture for it?

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How is the scale factor, surface area ratio and volume ratio related?

Travka [436]

The ratio of the surface areas of similar solids is equal to the square of their scale factor and that the ratio of their volumes is equal to the cube of their scale factor.

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1 year ago

The diagram shows a sector of a circle radius 10cm

Yuki888 [10]

Answer:

$\text{Perimeter of sector = 43.6 (Rounded to the nearest tenth.)}$

Step-by-step explanation:

$\text{Perimeter of the sector = Radius + arc length + radius}$

$\text{Radius = 10 cm}$

$\text{Perimeter of the sector = 10 + arc length + 10 }$

$\text{Perimeter of the sector = 20 + arc length }$

$\text{arc length = (sector angle/ 360 ) * perimeter of the circle}$

$\text{Perimeter of a circle }=2\pi r$

$\text{sector angle} = 135$

$\text{arc length} = (135/ 360 ) * 2\pi (10)$

$= (3/8) 20\pi$

$= 15\pi /2$

$\text{Using }\pi =3.14$

$= 15 * 3.14 /2$

$= 23.55$

$\text{Perimeter of the sector = 20 + 23.55}$

$= 43.55$

$= 43.6 cm$

$\text{perimeter of the sector = 43.6 cm }$

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2 years ago

What is the geometric mean of 7 and 9.

kirza4 [7]

<span>√63 = 3√7 is your answer</span>

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3 years ago

Rewrite 6√2 in the simplest form

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6<span>√2 is already in it's simplest form as a radical.

</span>

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3 years ago

What is the least common multiple of 2,6 and 15?

Alex

Answer:

LCM of 6 and 15 by Listing Multiples

Step 2: The common multiples from the multiples of 6 and 15 are 30, 60, . . . Step 3: The smallest common multiple of 6 and 15 is 30.

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3 years ago

Read 2 more answers