Question

4. Two angles of a triangle are 100° and
45°. Find the third angle.​

Answer 1

Answer:

The angle sum property of a triangle states that the sum of all 3 interior angles of a triangle is 180°.

1st angle = 100°

2nd angle = 45°

3rd angle = x°

100° + 45° + x° = 180° (Angle Sum Property)

145° + x° = 180°

x = 180° - 145°

x = 35°

Hence, the third angle of the triangle is 35°

Hope it helps

Answer 2

Answer:

Step-by-step explanation:

Let the third angle be x

the sum of the angles of the triangle is 180 degrees

then,

100+45+x = 180

x = 180 - 145

x = 35 degrees