Consider all triangles whose three angles are whole numbers (in degrees) and form an arithmetic sequence (each angle exceeds the previous by the same fixed amount). The middle angle of any such triangle is always:

Question

Accepted Answer

60°. If the angles are a-d, a, a+d, their sum is 3a = 180, so a = 60°. The middle angle is always 60°.

Consider all triangles whose three angles are whole numbers (in degrees) and form an arithmetic sequence (each angle exceeds the previous by the same fixed amount).
The middle angle of any such triangle is always:

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Angle Sum Property practice

Consider all triangles whose three angles are whole numbers (in degrees) and form an arithmetic sequence (each angle exceeds the previous by the same fixed amount).The middle angle of any such triangle is always:

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Angle Sum Property practice

Consider all triangles whose three angles are whole numbers (in degrees) and form an arithmetic sequence (each angle exceeds the previous by the same fixed amount).
The middle angle of any such triangle is always: