Question

What are theorems on angles

Answer 1

Step-by-step explanation:

Theorem 2 In any triangle, the sum of two interior angles is less than two right angles. Theorem 3 If two lines are intersected by a transversal, and if alternate angles are equal, then the two lines are parallel. Theorem 4 If two parallel lines are intersected by a transversal, then alternate angles are equal.

Answer 2

Answer:

Theorem 1 Vertical angles are equal.

Theorem 2 In any triangle, the sum of two interior angles is less than two right angles.

Theorem 3 If two lines are intersected by a transversal, and if alternate angles are equal, then the two lines are parallel.

Theorem 4 If two parallel lines are intersected by a transversal, then alternate angles are equal.

Theorem 5 If two lines are intersected by a transversal, and if corresponding angles are equal, then the two lines are parallel.

Theorem 6 If two parallel lines are intersected by a transversal, then corresponding angles are equal.

Theorem 7 - The Exterior Angle Theorem An exterior angle of a triangle is equal to the sum of the two remote interior angles.

Theorem 8 The sum of the interior angles of a triangle is two right angled.

Theorem 9 The converse of the isosceles triangle theorem If two angles in a triangle are equal, then the triangle is isosceles.