Answer:
20 is unreal numbers and 21 is no solution
Step-by-step explanation:
Pythagorean Theorem: a^2+b^2=c^2
C^2 being the missing angle because it’s the hypotenuse( angle diagonal from the 90degree box
4^2+13^2 = c^2
16+169=c^2
185=c^2
Then square root from both sides & c = 13.6
What type of an equation?
3 equivalent ratios or 5/2
10 /4
20/8
30/12
