By Jonathan and Aislinn. Circle Geometry and Theorems. Circle diameter. Task A - diameter. Task a - chord. Circle chord. TASK A - tangent. Circle tangent. This is an isosceles triangle. Because two of the sides are the same and the third one is not. . Task A.
This is an isosceles triangle. Because two of the sides are the same and the third one is not.Task A
We noticed that angle D is 90 degrees.
Circle theorem of chords
Angles subtended from the same segment of a chord are always the same.
“ Given a chord all angles from that chord are equal”
“For any chord the angle subtended at the centre is twice that subtended at the perimeter.”Task b – angles subtended at the centre
“Opposite angles of a cyclic quadrilateral add up to 180 degrees”