by angle sum property in traingle having ,
$50+70+x=180 \implies x=60^{\circ}$
now, by exterior angle property of triangle, $x+y=60+50$
put $x=60$ to get $y=50$
True the square root of 12 is irrational
Answer:
its d
Step-by-step explanation
you multiply 3 x 3.14 and see if its greater
Distance = 100 m = 100/1000 = 0.1 km speed of train = 50 km/hr speed of horse = 56 km/hr resultant speed = (56 – 50) 6 km/hr time = distance/speed time = 0.1/6 = 1/60 hr = 1 min