20 POINTS: Find the surface area of the figure. Round to the nearest hundredth if necessary.

Find the values of a and b. a The diagram is not drawn to scale. a = U b = U

nata0808 [166]

Answer:

a = 36°

b = 144°

Step-by-step explanation:

<h3>Method 1</h3>

Number of sides = n = 10

Sum of interior angles = (n - 2) × 180°

= (10 - 2) × 180°

= 8 × 180°

= 1440°

Interior angle = b = sum of interior angles ÷ number of sides

b = 1440 ÷ 10

b = 144°

a + b = 180° (Sum of angles in the straight line)

a + 144° = 180°

a + 144° - 144° = 180° - 144°

a = 36°

<h3>Method 2</h3>

Number of sides = 10

Exterior angle = a = 360° ÷ Number of sides

a = 360° ÷ 10

a = 36°

a + b = 180° (Sum of angles in the straight line)

36° + b = 180°

36° + b - 36° = 180° - 36°

b = 144°

7 0

2 years ago

....................

Murljashka [212]

Answer:

Equal to each other

Step-by-step explanation:

I hope that helped!

4 0

3 years ago

Read 2 more answers

Sweaters cost $42 each .For every 5 sweaters You buy,You get 1 sweater free.How much will a total of sweaters cost ?

solniwko [45]

Note: I think you may have unintentionally missed to mention the amount of total sweaters for which we have to measure the cost. So, after a little research, I was able to find the complete question. So, I will answer your question based on the following completing question. Anyways, it would clear your concept hopefully.

Here is the complete question:

Sweaters cost $42 each. For every 5 sweaters You buy,You get 1 sweater free. How much will a total of 30 sweaters cost?

Answer:

The cost of 30 sweaters = $1050

Step-by-step explanation:

What to determine?

How much will a total of 30 sweaters cost?

Information Fetching and Solution Steps:

The cost of each sweater = $42

For every 5 sweaters You buy, you get 1 sweater free. It means you will be able to get 6 sweaters for the price of 5

As

The cost of 6 sweaters ⇒ The cost of 5 sweaters + 1 free = 42×5 = $210

So

If the cost of 6 sweaters = $210

Then

the cost of 30 sweaters = 210 × 5 = $1050

Therefore, the cost of 30 sweaters = $1050

Keywords: cost

Learn more cost problems from brainly.com/question/13005346

#learnwithBrainly

8 0

3 years ago

10. A map uses the scale of Zof an inch to represent 3

galben [10]

Answer:

6.25 in

Step-by-step explanation:

Note. It should read 3/4 of an inch.

3/4 in = 3 miles
x in = 25 miles

Cross multiply and solve for x:

x = 25/3*3/4
x = 6.25 in

7 0

3 years ago

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28

Artemon [7]

Answer:

The correct answer is A. A long-term investor, who wishes to hold onto the house for an extended period and rent it out in the meantime.

Step-by-step explanation:

This kind of investment is particularly attractive for long-term investors that are seeking for a predictable and steady return and that are not looking for a short-term big shot. As it is mentioned in the description, for taking full advantage the investor knows in advance that the property will also be rented while it increases its value.

8 0

3 years ago