Question

if two angles of a triangle are 30degress 45 degrees then find its third angle​

Answer 1

Answer:

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Remember,the measure of a traingle is 180°.

Let the third number as y.

• 30°+45°+y=180°
• 75°+y=180°
• y=180°-75°
• y=105°

Hence,the third angle is 105°

Answer 2

Answer:

Given,

The two angles of a triangle (30° and 45°)

To find,

The third angle

Solution,

Let,the third angle as y.

Remember-The total measure of a traingle is 180°.

=>y+30+45=180

=>y+75=180

=>y=180-75

=>y=105°

Hence,the third angle measure is 105°