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Answer:
Figure ( i )
Given angles
60° & 70°
By using sum angle property
60° + 70°+ × = 180°
130°+ × = 180°
x = 180°- 130°
x = 50
Therefore,
Figure ( ii )
30° & 90°
( Since it is a right angled triangle one angled should be a right angle )
30°+ × 90° = 180°
120°+ × 180°
x = 180° - 120°
x = 60
Therefore
Figure ( iii )
40° & 40°
By using the right angle property
40° + × 40° = 180°
80° + × = 180°
x = 180° - 80°
x = 100°
1. types of triangles
2. other property in a triangle is
3. Exterior angle property states that exterior angle is equal to the sum of two opposite interior angles.
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Answers & Comments
☁Hope it Helps
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Answer:
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_Solution_
Figure ( i )
Given angles
60° & 70°
By using sum angle property
60° + 70°+ × = 180°
130°+ × = 180°
x = 180°- 130°
x = 50
Therefore,
Value of "x" is 50°
Figure ( ii )
Given angles
30° & 90°
( Since it is a right angled triangle one angled should be a right angle )
By using sum angle property
30°+ × 90° = 180°
120°+ × 180°
x = 180° - 120°
x = 60
Therefore
The value of "x" is 60
Figure ( iii )
Given angles
40° & 40°
By using the right angle property
40° + × 40° = 180°
80° + × = 180°
x = 180° - 80°
x = 100°
Therefore
The value of "x" is 100°
Additional information
1. types of triangles
2. other property in a triangle is
3. Exterior angle property states that exterior angle is equal to the sum of two opposite interior angles.
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