3 years ago

If an interior angle of a regular polygon measures 140*, how many sides does it have?

Mathematics

1 answer:

Katen [24]3 years ago

5 0

Answer:

9 sides.

Step-by-step explanation:

N is the # of sides.

140 = ((n-2) x 180) / n

Multiply both sides by n

140 n = (n-2) x 180

Distribute the right side

140 n = 180 n - 360

Subtract 140 n and add 360 to both sides.

40 n = 360

n = 9

You might be interested in

I really need some help .............

Effectus [21]

Answer:

Step-by-step explanation:

add the number of minutes for each day and then divide that number by the number of days

$35+60+65+60+85$ $=305$

$305 / 5 = 61$

8 0

3 years ago

Read 2 more answers

Find the circumference and area of the circle. Round to the nearest tenth.<br> 2 m

Fed [463]

Radius=2m

Circumference:-

$\\ \bull\sf\dashrightarrow 2\pi r$

$\\ \bull\sf\dashrightarrow 4(3.14)$

$\\ \bull\sf\dashrightarrow 12.56m$

Area.

$\\ \bull\sf\dashrightarrow \pi r^2$

$\\ \bull\sf\dashrightarrow 3.14(2)^2$

$\\ \bull\sf\dashrightarrow 3.14(4)$

$\\ \bull\sf\dashrightarrow 12.56m^2$

8 0

2 years ago

Read 2 more answers

3/15 as a fraction to a percent by first reducing to the lowest term

Lilit [14]

3/15 reduces to 1/5
1/5 = 0.2....0.2 * 100 = 20%

5 0

3 years ago

A = 1/2pl + B solve for p

BARSIC [14]

Answer:

Step-by-step explanation:

6 0

2 years ago

Pls help i need 5he ans to this question

Karolina [17]

-(4/5)*(3/7)*(15/16)*(-14/9) [two negatives make one positive]
=(4*3*15*14)/(5*7*16*9) [simplify 4/16]
=(3*15*14)/(5*7*4*9)
=(3*3*14)/(7*4*9)
=(14)/(7*4)
=(2)/(4)
=1/2

5 0

2 years ago