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pogonyaev
3 years ago
15

Which transformation preserves only angle measurement? Why is it not considered to be a rigid transformation?

Mathematics
2 answers:
olga55 [171]3 years ago
5 0
The correct answer would be A) dilation; A rigid transformation preserves shape and size<span />
Sati [7]3 years ago
3 0

A rigid transformation (also called an isometry) is a transformation of the plane that preserves length. In a rigid transformation the pre-image and image are congruent (have the same shape and sizes).

A. A dilation is a transformation that produces an image that is the same shape as the original, but is a different size (not an isometry). Forms similar figures or in other words preserves only angle measurement and ratio between sides lengths. In simple words, dilation means, it just resizes the given figure without rotating or anything else. It is not rigid transformation.

B. A rotation is a transformation in which the object is rotated about a fixed point. The direction of rotation can be clockwise or anticlockwise. Rotation is rigid transformation, it means that rotation preserves sides lengths.

C. In a reflection transformation, all the points of an object are reflected or flipped on a line called the axis of reflection. Under reflection, the shape and size of an image is exactly the same as the original figure. This type of transformation is rigid.

D. In a translation transformation all the points in the object are moved in a straight line in the same direction. The size, the shape and the orientation of the image are the same as that of the original object. Same orientation means that the object and image are facing the same direction. This type of transformation is rigid.

Answer: correct choice is A.

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Norma-Jean [14]

Answer:

Total length of iron needed to make the square frame and two diagonals =  43.44 in (Approx)

Step-by-step explanation:

Given:

Length of diagonal = 9 in

Find:

Total length of iron needed to make the square frame and two diagonals.

Computation:

Area of square = 1/2(diagonal)²

Area of square = 1/2(9)²

Area of square = 40.5 in²

Area of square = Side × Side

40.5 in² = Side × Side

Side = 6.36 (approx)

Total length of iron needed to make the square frame and two diagonals = Permeter of square + (2 × diagonal)

⇒ (4 × 6.36) + (2 × 9)

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Total length of iron needed to make the square frame and two diagonals =  43.44 in (Approx)

4 0
3 years ago
Evaluate. 4^3⋅(100÷25)−5^0 Enter your answer in the box.
astraxan [27]

4³ ⋅ (100 ÷25) − 5^0

[parenthesis goes first, then exponents]

[any coefficient with zero exponent is equal to 1]

64 · 4 - 1

[multiplication, then subtraction]

256 - 1

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4 0
2 years ago
Y = 100 (1- 1/2) ^t<br><br> decay or growth
charle [14.2K]

Answer:

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Step-by-step explanation:

We are given an equation y=100(1-0.5)^t

We need to say about decay or growth of exponential function.

Exponential function: y=a\cdot b^x

Where,

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For decay: 0<b<1

For growth: b>1

Now we rewrite the equation into this form

y=100(1-0.5)^t

Changes to

y=100(0.5)^t

Here, b=0.5 < 1

Therefore, The given function would be decay.

Thus, y=100(1-0.5)^t is deacy.



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Answer:

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I hope I helped! ^-^

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If you are doing a gift exchange, and everyone has to spend at least 10 dollars but less than 20 dollars, what inequality repres
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Answer:

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Step-by-step explanation:

7 0
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