198k views
2 votes
In an isosceles triangle , one angle measures 20 degrees. What are the measures of the other two angles.

80 and 80 degrees
90 and 90 degrees
20 and 140 degrees
20 and 60 degrees

2 Answers

4 votes
80+80=160+20=180

triangles should always equal 180
User Xjtian
by
8.6k points
3 votes

Answer:

Other two angles are 80 and 80 degrees

Explanation:

In an isosceles triangle , one angle measures 20 degrees.

In an isosceles triangle two angles are equal

In a triangle , we have three angles

one angle is 20 degree. sum of angles in a triangle is 180 degree

other two angles is equal to 180 - 20 = 160

other two angles are of equal degree so we divide by 2

160/2= 80

Other two angles are 80 and 80 degrees

User Paul Ramsey
by
8.1k points