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Alborosie
3 years ago
7

The length of a rectangle is three more than it’s width. the perimeter is 86 cm. Find the length and width of the rectangle. Wri

te an equation to represent the problem and solve the problem
Mathematics
1 answer:
Mariana [72]3 years ago
6 0
Half-perimeter=length+width=width+3+width=43, 2×width=40 so width=20cm and length=23cm.
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The value of the given trigonometry function is 2√15/15

<h3>Half angles</h3>

Half angles are trigonometric identities used to express sine, cosine and tangent of half angles.

For instance the value of cos theta is expressed as shown below;

cosФ = cos(Ф/2+Ф/2)

cosФ = cos²Ф/2-sin²Ф/2
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Learn more on trigonometry function here: brainly.com/question/2254074

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