Question

Find the value of x in each of the following.​

Answer 1

I) 45° +x°+60°+40°=180°(linear pair)

145°+ x°= 180°

x= 180°-145°

x=35°

ll) 75°+30°+85°+45°+40°+x°=360°( complete angle)

275°+x°=360°

x°=360°-275°

x°=85°

HOPE IT HELPED!

Answer 2

Answer:

(I)we know that,

the sum of all angles at a point=360°

therefore,

45°+60°+40°+100°+75°+x=360°

=>320°+x=360°

=>x=360°-320°

=>x=40°

(ii)(I)we know that,

the sum of all angles at a point=360°

therefore,

30°+75°+40°+45°+85°+x=360°

=>275°-x=360°

=>x=360°-275°

=>x=85°