Answer:
x = 42°
Explanation:
Given that,
→ A = 48°
→ B = 90°
→ C = x
Formula we use,
→ A + B + C = 180°
Let's solve for the value of missing angle,
→ A + B + C = 180°
→ 48° + 90° + x = 180°
→ 138° + x = 180°
→ x = 180° - 138°
→ [ x = 42° ]
Hence, value of missing angle is 42°.