How to find missing angle of aquadrilateral with angles 105 106 and 80

69°

Step-by-step explanation:

interior angles of a quadrilateral add up to 360 degrees

105+106+80 = 291

360 - 291 = 69

therefore the missing interior angle is 69 degrees

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: