Answer:
x = 15 cm
Step-by-step explanation:
Use Pythagorean thm:
9² + 12² = x²
81 + 144 = x²
225 = x²
√225 = √x²
15 = x
Hope this helped :)
B) 67 degrees
The correct answer is 67 and side a is 14.8
Make all the x points opposite. For example -837 to +837
23=(x/5) + 14
maybe. either that or
23 = (5/x) + 14
but i think the first one is right
