Question

find the area of the portion of the circle that is outside triangle RST if the radius of the circle is 8 cm,,, no sides are given.

Answer 1

need a photo to fully understand

Answer 2

it is a scalene triangle inscribed a circle..,

Answer 3

are the edges of the triangle touching the circle?

Answer 4

this is the figure,,

Answer 5

pls help me ,,

Answer 6

hang on, im trying my homework as well

Answer 7

thanks in advance :)

Answer 8

well it has given you the measurement of the base, it goes across the circle with a radius of 8

Answer 9

so you have 16 on the bottom line

Answer 10

where?? is it on the opposite of angle T?

Answer 11

may i ask the process how to get it?

Answer 12

Assuming that your drawing is correct, KittyCat, the angle SRT is 180 - (60 + 70) degrees, or 50 degrees.

Jonesy: The diameter of this circle is 2(8)=16. Each of the 3 sides is shorter than 16. How can you conclude that "the bottom line is 16"? Justification, please?

Answer 13

yeah,, i know that the measure of the other angle is 50,, but then the problem is how to get the measure of the sides?

Answer 14

the drawing isnt very well set out, kinda hard to read at certain parts because it isnt an even circle, which makes a measurement hard to determine

Answer 15

I haven't yet visualized how to find the area of the triangle, but would suggest that if that area can be found, the area inside the circle but outside the triangle is simply the area of the circle less the area of the triangle. The area of the circle is pi*(8)^2.

Jonesy: in my opinion, the drawing is plenty good enough. All of the sides are shorter than 16. Each vertex of the triangle touches the circle.

Answer 16

another question in how to get the area of that triangle if only angles are given?

Answer 17

i honestly have no idea, im still only a yr 9 student and i dont do the angles of stuff yet, sorry for clogging up your question catt

Answer 18

its okey.... :) thanks for trying Jonesy ,

Answer 19

ill leave you in the capable hands of mathmale

Answer 20

yes jonesy,,, help me mathmale,, plsss,,,,

Answer 21

KittyCat: Please try an Internet/Google search for "area of a triangle inscribed in a circle." You'll likely find some helpful ideas there. Note that your inscribed triangle is not equilateral. However, with the triangle's three interior angles known, we could use the Law of Sines to determine the relative (not absolute) lengths of each of the three sides.

Answer 22

is it realy possible to use law of sines even without any sides given?

Answer 23

As I said, not to determine the absolute length of any one side, but to determine how the length of one side relates to (is a fraction of) each of the other two sides. Not immediately helpful here, I realize. Again, please try a Google search for "area of a triangle inscribed in a circle," remembering that we're dealing with a scalene triangle (one with all sides different).

Answer 24

thanks,

Answer 25

One other thing: If the radius of this circle is 8 units, then we know the circumference of the circle. It's C = 2pi * 8. Are you familiar with the arc length formula, s = r (theta)? That may be relevant here.

Sorry I can't do more for you at the moment. Why not summarize what you've learned and are relatively sure of, in regards to solving this problem, and then try to define what it is beyond that that you need to find/know before you can calculate the area of this triangle?

Answer 26

that a big help for me ,, thanks a lot :)

Answer 27

My great pleasure. Good luck!