Question

one of the angles of a triangle is 100° and the other two anglesare equal . Find each of the equal angles​

Answer 1

Answer:

40°

Step-by-step explanation:

let the missing angles be x and y

both the angles are equal as given

hence, x = y -(1)

as per property of triangles,

100 + x + y = 180

from (1),

100 + x + x = 180

100 + 2x = 180

2x = 180-100

2x = 80

x = 40 - (divide be 2)

Answer 2

Answer:

40°

Step-by-step explanation:

Let the angles be x

Sum of angles of a triangle =180°

100 +x +x =180°

100+2x =180 °

2x =180-100

2x = 80

x=80 ÷2

X = 40

So one angle =40°