Answer:
x = 4.1 cm
Step-by-step explanation:
cause big maths
15.6 / 2 = 7.8
x^2 = 8.8^2 - 7.8^2
x^2 = 77.44 - 60.84
x^2 = 16.6
x = 4.1
Answer: D
2a. 3 degreesC
2b. -3 degrees Celsius