Question

solve this and I will give you brain list please as fast as possible ​

Answer 1

Answer:

1) 90+30+x = 180

x= 60

2) 80+20+y =180

y= 80

3)90+40+a=180

a= 50

Answer 2

Answer:

Angle sum property of triangle states that the sum of interior angles of a triangle is 180°.

(I)60°, (II)80°,(III)70°

Step-by-step explanation:

(i)90°+30°=120°

180°-120°=60°

x°=60°

(ii)80°+20°=100°

180°-100°=80°

y°=80°

(iii)The measure of angle between two rays is exactly equal to 90° degrees,then the angle is called a right angle.

so,one corner which was right angle =90°

90°+40°=130°

180°-130°=50°

a°=50°

x°=60°

y°=80°

a°=50°

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