3 years ago

true or false? A regular polygon is one in which all angles are congruent and all sides are congruent.

1 answer:

8 0

A regular polygon is one where all angles are exactly the same and all sides are the same length.

congruence = exactly the same.

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What is angle B.........

inysia [295]

Answer:

64.62°

Step-by-step explanation:

Use good 'ol SOHCAHTOA. Since we know the hypotenuse and the adjacent values, we use cosine.

Therefore:

$cos( ?) = \frac{3}{7}$

Take the inverse cosine of each side:

${cos}^{ - 1} (cos( ?)) = {cos}^{ - 1} ( \frac{3}{7} )$

Inverse cosine of cosine cancel each other out:

$? = {cos}^{ - 1} ( \frac{3}{7} )$

Use a calculator:

$? = 64.623$

Therefore the angle is 64.62°

7 0

4 years ago

Read 2 more answers

• How many months quicker will a $600

Tamiku [17]

the answers is at the picture :)

8 0

2 years ago

Yvonne wants to cover the back of her smartphone with a decorative pattern. If the phone's length is 12 foot and width is 16 foo

Schach [20]

Answer:

192 square meters

Step-by-step explanation:

Imma assume her phones a rectangle, so you're gonna length times width

L x W = area

12 x 16 = area

192 = area

8 0

3 years ago

A right triangle has a length of 30 and a side with a length of 18. A side with a length of 24 is opposite angle theta. What sta

tekilochka [14]

Answer:

$\text{A. }\cos \theta = \frac{3}{5}$

Step-by-step explanation:

See attached file for complete work.

Download pdf

7 0

3 years ago

The perimeter of a triangle is 60 feet. Of the two unknown sides, the length is twice as long as the other. Find the lengths of

erik [133]

Answer: The length is 30, the 2 sides are 15.

Step-by-step explanation:

4 0

3 years ago