Question

find angle x using angle properties

Answer 1

angle at center is twice the angle at other parts
in a circle
therefore angle o is 80°
then we have a triangle and angles opposite to equal sides are equal
therefore angle x=50°

Answer 2

Ur answer is...
Aqute angle O is 80°. (By theorum 10.8)
Let the other angle be x bcoz it is equal 2 the given angle x....
(Both radii are equal and angle opposite to equal sides are also equal)
So x+x+80°=180°(angle sum property)
2x=180°-80°
x=100°/2
x=50°

Hope this will help you....Plz mark it as brainliest...