The answer I think is 5 because
Answer:
Step-by-step explanation:
12). By applying Pythagoras theorem in the given right triangle,
Hypotenuse² = (Leg 1)² + (Leg 2)²
x² = 7² + 7²
x² = 2(7)²
x = 
x = 
13). By sine rule,
sin(60)° = 

y = 
y = 18
By cosine rule,
cos(60)° = 

x = 
x = 
14). By applying Pythagoras theorem in the given right triangle,
12² = x² + x²
144 = 2x²
72 = x²
x = √72
x = 6√2
Eight below zero would express the value -8, negative eight,
but not 8.
It’s the third one
B=50.27 cm
V=371.97