2 years ago

Pleaseee HELPP MEE WITHH THIS QUESTION!

Mathematics

1 answer:

Zina [86]2 years ago

7 0

Answer:

1120°

Step-by-step explanation:

Use the sum of interior angles formula:

$180(n-2)$

Where n is the number of sides.

In a nonagon, there are 9 sides, substitute 9 for n:

$180(9-2)\\180(7)\\1260$

Since our nonagon is a regular nonagon, all 9 angles measure the same, so each angle measures:

$\frac{1260}{9} =140$

Subtract 140 from 1260:

$1260-140=1120$

You might be interested in

A game room has a floor that is 100 feet by 30 feet. A scale drawing of the floor on grid paper uses a scale of 3 units:5 feet.

Ghella [55]

3 units/ 5 feet = 60 units/ 100 feet
3 units/ 5 feet = 18 units/ 30 feet

The dimensions of the scale drawing are 60 units by 18 units.

Hope this helps!

7 0

3 years ago

27-10/30

Studentka2010 [4]

Can sb help with mines please

5 0

3 years ago

the Davis family pays 200,000$ for a new house. they make a down payment that is 1/10 of the price of the house.How much is the

Dafna1 [17]

The down payment would be 20,000.

7 0

3 years ago

Help me please ASAP please help

Mekhanik [1.2K]

Answer:

the volume is 15.7 in. 3............

4 0

3 years ago

A car park has no parking spaces on the first floor. The second floor has double the amount of spaces on the first floor. The th

Artist 52 [7]

Answer:

85 parking spaces

Step-by-step explanation:

Given that :

Parking spaces on floors :

Let first floor = x

Second floor = 2x

Third floor = 2x + 3

Total parking spaces = 428

THEREFORE ;

x + 2x + 2x + 3 = 428

5x + 3 = 428

5x = 428 - 3

5x = 425

x = 425 / 5

x = 85

Hence, there are 85 parking spaces on the first floor

7 0

3 years ago