Question

if three angles of a quadilateral are each equal to 75percent then the fourth angle is

Answer 1

Step-by-step explanation:

let the four angles be p, q, r, s

p + q+ r = 75s/100 -----------(1) ( given)

sum of all angles in a quadrilateral = 360°

p + q + r + s = 360°

from equation (1) p + q+ r = 75s/100

75s/100 + s = 360°

75s+100s /100 = 360°

175s = 360×100

s = 360×100/175

s = 205.7°