Circles

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Across
  1. 1. Through three collinear points a circle can be drawn, state whether true or false.
  2. 4. Given points M(0, 0), N(2, 0), P(2, 5), and Q(0, 5), what shape is formed when joining MN, NP, PQ, and QM?
  3. 6. D and E are the mid-points of the sides AB and AC of ∆ABC and O is any point on side BC. O is joined to A. If P and Q are the mid-points of OB and OC respectively, then DEQP is a ________.
  4. 9. If APB and CQD are two parallel lines, then the bisectors of the angles APQ, BPQ, CQP and PQD form a _______.
  5. 10. If one angle of a triangle is equal to the sum of the other two angels, then the triangle is an _______ triangle.
Down
  1. 2. The angles of a triangle are in the ratio 5:3:7. The triangle is a/an ________ angled triangle.
  2. 3. Given points O(0, 0), A(3, 0), B(3, 4), and C(0, 4), what shape is formed when joining OA, AB, BC, and CO?
  3. 5. The point at which the two coordinate axes meet is called the ________.
  4. 7. A triangle with sides in the ratio 3:4:5 is always a _______ angled triangle.
  5. 8. If angles A, B, C and D of the quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4, then ABCD is a_______.