To find the value of angle B given that angle C is 148° in a triangle, we can use the fact that the sum of the angles in a triangle equals 180°.
The formula for the sum of the angles in a triangle is:
\[ A + B + C = 180° \]
Given that \( C = 148° \), we can substitute this value into the equation:
\[ A + B + 148° = 180° \]
To find \( A + B \), we can subtract 148° from both sides of the equation:
\[ A + B = 180° - 148° \]
Calculating the right side, we get:
\[ A + B = 32° \]
At this stage, we need additional information to find the specific value of B since we have two variables (A and B) but only one equation. If you have additional details about angle A or any relationship between A and B, please provide them so that we can proceed to find B.