142°
a
Use the properties of extenor anglies of triangles to find angle &
The exterior angle of a triangle can be found by summing the two remote interior angles of the triangle.
Let's assume we have a triangle with interior angles A, B, and C, and angle A is the exterior angle.
By the property of exterior angles, we can write:
A = B + C
In our case, angle A is given as 142°. Let's assume angles B and C as unknowns.
A = 142°
We can set up the equation:
142° = B + C
Now, depending on the additional information given in the question, we may be able to solve for angles B and C. If there is no additional information, we cannot determine the exact measures of angles B and C.
To find the measure of angle A, we need additional information about the triangle. Could you provide more details about the triangle or any other angles or side lengths?
To find the value of angle a, we need to use the properties of exterior angles of triangles.
The sum of the measures of the exterior angles of any triangle is always 360 degrees. Therefore, we can subtract the given angles from 360 to find the measurement of angle a.
Since the given angle is 142°, we can do the following calculation:
a = 360° - 142°
a = 218°
Therefore, the measure of angle a is 218°.