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2 years ago

PLEASE HELP ASAP!Construct an angle of 75° and write the steps of construction.

Mathematics

1 answer:

vlada-n [284]2 years ago

6 0

Step-by-step explanation:

Steps of Construction

(i) Draw ray AB.

(ii) Construct ∠BAC = 60°.

(iii) Construct ∠BAD = 90°.

(iv) Bisect ∠CAD, so that ∠CAE = ∠EAD = 15°.

(v) We obtain ∠BAE = ∠BAC + ∠CAE = 60° + 15° =75°.

Hope this Helps!!!!

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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

The scale factor is s

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therefore

The length of the image AB after dilation is

$3(s)=3s\ cm$

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Read 2 more answers

PLEASE HELP ASAP!Construct an angle of 75° and write the steps of construction.​

PLEASE HELP ASAP!Construct an angle of 75° and write the steps of construction.