3 years ago

Arc length

Mathematics

1 answer:

adell [148]3 years ago

8 0

Answer:4π

Step-by-step explanation:

Φ=72

Radius=r=10

Length of arc=Φ/360 x 2 x π x r

Length of arc=72/360 x 2 x π x 10

Length of arc=0.2 x 2 x π x 10

Length of arc=4π

You might be interested in

Find the area of the composite figure in terms of the figure (use 3.14 for pi)

svp [43]

Answer:

105.12 ft²

Step-by-step explanation:

Let's first find the area of the rectangle.

$10\cdot8=80$ ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is $\pi r^2$ . The radius is 4, as the diameter is 8.

$3.14\cdot4^2$

$3.14\cdot16$

$50.24\div2=25.12$

Add 80 and 25.12:

$80+25.12=105.12$

Hope this helped!

5 0

3 years ago

Kinda confused on what the sum would be?!? HELP NOWW PLEASE

valentinak56 [21]

That is b. aka 2
thanks

4 0

3 years ago

F = 2x + y 3x + 5y = 45 x20 and y20 2x + 4<32

ipn [44]

Answer:

Step-by-step explanation:

6 0

3 years ago

Which expression is equal to 37√ ? 37√49 737√ 37√7 217√

e-lub [12.9K]

Answer:

dont know what grade your in but looks like u need to help me

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

In a school building there are 653 children. If there are 47 children in each room, how many rooms are in the building ?

Mashcka [7]

653/47 = 13.89
so 14 rooms

7 0

3 years ago

Read 2 more answers