3 years ago

A sector has a radius of 4 and a central angle of 40 degrees. Find the arc length and area of sector

Mathematics

1 answer:

g100num [7]3 years ago

4 0

Answer:

Step-by-step explanation:

θ = 2π/9 radians

arc length = rθ = 8π/9 units

area of sector = πr²/9 = 16π/9 square units

You might be interested in

HELP! *i keep asking questions sorry, i just need help lol*

djyliett [7]

Answer:

Siobhan is making a total of $9.12 per hour.

Step-by-step explanation:

James makes $8 an hour.

Priya makes 20% more, so:

8.00 + 20% = $9.60

Siobhan makes 5% less, so:

9.60 - 5% = $9.12

Thus, the answer is $9.12.

3 0

3 years ago

Read 2 more answers

Find the area of a triangle that has a base of 10 inches and a height of 7 inches.

Ksivusya [100]

C. 35 in2

10*7=70

70/2= 35

4 0

3 years ago

8 angles are formed by a transversal that intersects two parallel lines. Angles Alpha and Epsilon are Consecutive Exterior Angle

Afina-wow [57]

Answer:

113 degrees

Step-by-step explanation:

Since, Angles Alpha and Epsilon are Consecutive Exterior Angles.

$\therefore m\angle \alpha + m\angle \epsilon = 180 \degree \\ \\ \therefore m\angle \alpha + 67 \degree= 180 \degree \\ \\ \therefore m\angle \alpha = 180 \degree -67 \degree \\ \\ \therefore m\angle \alpha = 113 \degree$

7 0

3 years ago

Use the distributive property to remove the parentheses. -(-4w-x+4)

andrezito [222]

4w+x-4
Because when multiplying by a negative with a negative you will get a positive and multiplying a negative with a positive will get you a negative

6 0

4 years ago

Lana is the oldest of four sisters. Her youngest sister is half her age. The other two sisters are twins $2$ years younger than

ivanzaharov [21]

N= 7
2n+n+2n-2+2n-2=45
7n-4=45
7n=49
n=7

6 0

3 years ago