First point out the conditions and conclusions of the following propositions, and then write their inverse propositions to judge whether they are true or false. 1 If a triangle is a right triangle, then its two sharpness. 1. If a triangle is a right triangle, its two acute angles are complementary.

Condition: The triangle is a right triangle.

Conclusion: The two acute angles of this triangle are complementary.

Inverse proposition: A triangle is a right triangle if its two acute angles are complementary.

Judgment: true proposition

Every angle of an equilateral triangle is equal to 60 degrees.

Condition: The triangle is an equilateral triangle.

Conclusion: Every angle of this triangle is equal to 60 degrees.

Inverse proposition: If every angle of a triangle is equal to 60 degrees, the triangle is an equilateral triangle.

Judgment: true proposition

3. The corresponding angles of congruent triangles are equal.

Condition: Two triangles are congruent

Conclusion: The angles of these two triangles are equal.

Inverse proposition: If the corresponding angles of two triangles are equal, then the two triangles are congruent.

Judgment: false proposition

4. If A equals B, then the cube of A equals the cube of B..

Condition: a equals B.

Conclusion: The cube of A is equal to the cube of B.

Inverse proposition: if the cube of a is equal to the cube of b, then a is equal to B.

Judgment: true proposition