Write the negation of the following simple statements. All similar triangles are congruent.

Which minimum measurements do you require to check if the given figures are congruent: i. Two rectangles " " ii. Two rhombuses.

If two angles and the included side of one triangled are euqal to two angles and the included side of the other triangle, prove that those two triangles are congruent.

Find counter examples to disprove the following statements: Two triangles are congruent if all their corresponding angles are equal.

State whether each of the following statements is true or false : The areas of two similar triangels are propotional to their correspoonding sides.

If the areas of two similar triangles are equal, prove that they are congruent.

Recall that two circles are congruent if they have the same radii. Proe that equal chords of congruent circles subtend equal angles at their centres.

State whether the following triangles are congruent or not? Give reasons for your answer.

State whether the following triangles are congruent or not? Give reasons for your answer.