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3 years ago

10

A rectangle is

2 answers:

sergejj [24]3 years ago

8 0

Sometimes, always

<u>Explanation:</u>

A rectangle is sometimes similar to another rectangle, because we can always map one onto the other using only dilations and rigid transformations. A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

A dilation is NOT referred to as a rigid transformation (or isometry) because the image is NOT necessarily the same size as the pre-image (and rigid transformations preserve length).

Butoxors [25]3 years ago

8 0

Answer:

Sometimes; Sometimes

Step-by-step explanation:

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DanielleElmas [232]

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What is the answer to what X is?

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Step-by-step explanation:

By the exterior angle theorem,

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3 years ago

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3 years ago

What is the surface area of this triangular prism rounded to the nearest tenth? A) 48.6km2 B) 63.4 km2 C) 72.6 km2 D) 84.4 km2

Mekhanik [1.2K]

Correct option B) $63.4km^2$ .

<u>Step-by-step explanation:</u>

We have the following figure attached as shown below.

Now, this triangular prism have 2 similar right angled surfaces and 3 rectangular surfaces , Let's calculate area for all of them:

2 similar right angled surfaces

We know that area of triangle = $\frac{1}{2} b(h)$

⇒ $area = \frac{1}{2} b(h)$

⇒ $area = \frac{1}{2} (3.6)(7.7)$

⇒ $area = 13.86km^{2}$

But there 2 such surfaces so , $area = 2(13.86) = 27.72km^2$

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Area of rectangle = $length(breadth)$

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⇒ $area_2= 7.7(1.8)$

⇒ $area_2 = 13.86km^2$

⇒ $area_3 = 8.5(1.8)$

⇒ $area_2 = 15.3km^2$

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Adding area of 2 similar right angled surfaces & 3 rectangular surfaces:

$Area = 27.72+35.64 = 63.36km^2$ = $63.4km^2$

Correct option B) $63.4km^2$ .

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3 years ago

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