Question
In a circle of diameter 40cm,length of chord is 20 cm. Find the length of minor arc of the chord.
Answers
Reiny
The radius is 20cm and the chord is 20 cm.
Draw the radii to each end of the chord, you will see that you have an equilateral triangle, so the chord subtends a central angle of 60°, which is 1/6 of the circumference.
That should give you enough of a clue to proceed.
Draw the radii to each end of the chord, you will see that you have an equilateral triangle, so the chord subtends a central angle of 60°, which is 1/6 of the circumference.
That should give you enough of a clue to proceed.
Gash
Can u please simplify am not able to get the answer
Steve
If you haven't gotten as far as the figure on this page, you're not trying. Label each side of the triangle as <b>r</b> and Reiny's tip should become clear.
https://www.google.com/search?client=firefox-b-1&biw=1384&bih=802&tbm=isch&sa=1&ei=VqVoW8-hC8vAsAW64JHIDA&q=inscribed+isosceles+triangle&oq=inscribed+isosceles+triangle&gs_l=img.3..0i30k1j0i8i30k1l2j0i24k1.291489.294036.0.294233.9.9.0.0.0.0.121.771.8j1.9.0....0...1c.1.64.img..1.8.698...0i7i30k1j0i7i5i30k1j0i8i7i30k1.0.INqJV4wWOHI#imgrc=55TcSC0EBwUQ3M:
https://www.google.com/search?client=firefox-b-1&biw=1384&bih=802&tbm=isch&sa=1&ei=VqVoW8-hC8vAsAW64JHIDA&q=inscribed+isosceles+triangle&oq=inscribed+isosceles+triangle&gs_l=img.3..0i30k1j0i8i30k1l2j0i24k1.291489.294036.0.294233.9.9.0.0.0.0.121.771.8j1.9.0....0...1c.1.64.img..1.8.698...0i7i30k1j0i7i5i30k1j0i8i7i30k1.0.INqJV4wWOHI#imgrc=55TcSC0EBwUQ3M: