Line ab intersects line df. which statement shows that the two lines are perpendicular?

a- line ab and line df are on the same plane.

b- line ab and line df intersect only once

c- line ab and line df intersect at a 90 angle

d- line ab and line df intersect at a 180 angle

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .

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