Question

find the length of each arc in terms of pi.

Answer 1

There should be more information.

Answer 2

it is a circle and the radius is 11ft.

Answer 3

So then the circumference would be 2π(11)ft or 22πft. But there should be an angle measure that corresponds to the arc.

Answer 4

The arc length formula is 2πr*(x/360) where r is the radius and x is the degree measure of the arc.

Answer 5

the degree is 150

Answer 6

then you would have 2π(11)(150/360) = 9.167π ft

Answer 7

thanks now i need your help with another question. find the area of a rhombus.

Answer 8

so a rhombus is a parallelogram and the area of a parallelogram is base*height. So you should have a base and height. The height will be measured perpendicular to the base (create a 90 degree angle)

Answer 9

a 90 degree angle is already created

Answer 10

Good, then take the base and multiply by the height and that will give you the area.

Answer 11

the answer says 21.65 cm^2 and i do not know how he came up with that.

Answer 12

please reply back i need your help

Answer 13

Are there any lengths given?

Answer 14

they gave me 30 and 5cm

Answer 15

are these the lengths of the base and the height? If so the answer should be 30*5 = 150 square cm

Answer 16

i don't think it is because 150 is not the answer on my answer sheet. I think those numbers represents something else but i just do not know what

Answer 17

Are they the lengths of the diagonals?

Answer 18

there are two diagonals and one of the lenghts is 30 and the other number is on the outside of the rhombus.

Answer 19

Without being able to see a diagram I'm afraid I can't be much help with this problem, sorry.

Answer 20

thanks anyway for trying but im not done with you yet, um I need help with finding the area of a triangle. Round to the nearest tenth and the base of the triangle is 3 ft.

Answer 21

ok, area of a triangle is given by the formula (1/2)bh where b is the base and h is the height. So for this problem there should be a height given.

Answer 22

it's only 3ft and its an equilaterial triangle.

Answer 23

ah, ok then. In an equilateral triangle you can draw the height in. The height line will cut the base in half and give you two triangles with sides 1.5 and 3 with the last side as 2.59807621 (using the pythagorean theorem a^2 + b^2 = c^2).
So the height (2.59807621) times the base (3) divided by 2 is = 3.89711432

Answer 24

so are both sides going to be 1.5

Answer 25

how did you get 2.59807621