Answer:
12 meters
20cm*60 = 1200cm = 12 meters
100cm = 1m btw
Step-by-step explanation:
A=42.25
6.5^2
in complementary angle, the sum of two angle is always 90 degree.
let another angle be x
x+78.7=90
x=90-78.7
x=11.3
therefore anothere angle is 11.3 degree.