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3 years ago

What is the area of this polygon

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

6 0

Answer:

First find the distance between points M and V and the distance between points M and R using the distance formula:

MV = the sq. rt of (-2 - (-5)^2 + (3 - 2)^2

MV = the sq. rt of 9 + 1

MV = the sq. rt of 10

MR = the sq. rt of (-2 - (-5)^2 + (-3 - 2)^2

MR = the sq. rt of 9 + 25

MR = the sq. rt of 34

Now we cut the polygon into a triangle and a rectangle solving each area and adding them together:

Triangle- A = 1/2bh

A = 1/2(6)(3)

A = 9

Rectangle- A=bh

A = 6(5)

A = 30

Now add these areas together- 30 + 9 = 39units^2 and that's your answer

iragen [17]3 years ago

3 0

Answer:

The area of any regular polygon is given by the formula: Area = (a x p)/2, where a is the length of the apothem and p is the perimeter of the polygon. Plug the values of a and p in the formula and get the area.

Step-by-step explanation:

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3 years ago

denis-greek [22]

Answer:

Part a) $AB=15\ cm$

Part b) $AB=11.1\ cm$

Part c) $AB=3/5\ cm$

Part d) $AB=3s\ cm$

Step-by-step explanation:

see the attached figure to better understand the question

we know that

To find the length of the image after a dilation, multiply the length of the pre-image by the scale factor

Part a) we have

The scale factor is 5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(5)=15\ cm$

Part b) we have

The scale factor is 3.7

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(3.7)=11.1\ cm$

Part c) we have

The scale factor is 1/5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(1/5)=3/5\ cm$

Part d) we have

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The length of the image AB after dilation is

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3 years ago

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Answer:

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Step-by-step explanation:

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Since we have a rectangle with sides 90 and 120, we know if we split a diagonal across it, we will get a right triangle with legs 90 and 120. From there, we use Pythagorean Theorem to solve:

90² + 120² = c²

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√c² = √22500

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