What is the measure of each base angle of an isosceles triangle if its vertex angle measures 40° and its 2 congruent sides measu

Question

son4ous [18]

2 years ago

8

What is the measure of each base angle of an isosceles triangle if its vertex angle measures 40° and its 2 congruent sides measu

re 25 units

Mathematics

2 answers:

dmitriy555 [2] · Answer 1 · 2022-06-06T20:03:56+03:00

dmitriy555 [2]2 years ago

5 0

The length of the base angle is triangle

DanielleElmas [232] · Answer 2 · 2022-06-06T21:43:23+03:00

Answer:

70 degrees

Step-by-step explanation:

since an isosceles triangle is symmetrical, i cut the triangle in half (vertically) so that it became a right triangle. so the angle sides are now 20 degrees at the top, 90 degrees (right angle, where it was cut), and x degrees. 20 + 90 + x = 180 degrees (total amount of degrees in a right triangle) x = 70 degrees.

hope this helps!