Find the value of x in a triangle
Asked by admin @ in Math viewed by 375 People
Find the value of x in the given below triangles.
Asked by admin @ in Math viewed by 375 People
Find the value of x in the given below triangles.
Answered by admin @
Figure ( i )
Given angles ;
60° & 70°
By using sum angle property
60° + 70° + x = 180°
130° + x = 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 angle should be a right angle )
By using sum angle property
30° + 90° + x = 180°
120° + x = 180°
x = 180° - 120°
x = 60°
Therefore,
Value of ' x ' is 60°
Figure ( iii )
Given angles ;
40° & 40°
By using right angle property ,
40° + 40° + x = 180°
80° + x = 180°
x = 180° - 80°
x = 100°
Therefore,
Value of ' 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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