Question

What is the measure of the vertex angle of an isosceles triangle if one of the base angles measures 56°

Answer 1

what do you know about an isosceles triangle....?

Answer 2

it has atleast 2 equal sides

Answer 3

and what else is equal...?

Answer 4

the angles?

Answer 5

yep... its normally described as the base angles are equal.



you need to find the side of a knowing the base angles of the isosceles triangle.

hope this helps.

Answer 6

idk what they equal. im not good with finding angles or side degrees... thanks for the picture

Answer 7

or do you just add them both up?

Answer 8

which =112 degrees

Answer 9

ok... so the angles in a triangle add to 180

so

a = 180 - 56 - 56

Answer 10

ohhh! okay thanks os much :)