2. do all and send ans please
Answers
2. Find the value of the unknown x in the below figure.
Concept : The sum of all the angles inside a triangle is equal to 180°
x + 50° + 60° = 180°
x + 110° = 180°
x = 180° - 110°
x = 70°
∴ The value of x is 70°
3. Find the value of x and y in the adjoining figure.
In the figure, y and 80° are vertically opposite angles. (These are the angles formed when two lines intersect.)
Vertically opposite angles are equal.
Hence, y = 80°
In a triangle, the sum of the angles is equal to 180°
50° + x + y = 180°
50° + x + 80°= 180°
x + 130° = 180°
x = 180° - 130°
x = 50°
4. Find the value of x and y in the below figure.
In the figure, x and 60° are vertically opposite angles. (These are the angles formed when two lines intersect.)
Vertically opposite angles are equal.
Hence, x = 60°
In a triangle, the sum of the angles is equal to 180°
30° + x + y = 180°
30° + 60° + y = 180°
y + 90° = 180°
y = 180° - 90°
y = 90°
the answer is there in the pic...
