joshnjenje
joshnjenje joshnjenje
  • 03-02-2021
  • Mathematics
contestada

Need help on these 2 for geometry

Need help on these 2 for geometry class=

Respuesta :

s1m1
s1m1 s1m1
  • 03-02-2021

Answer:

7. 69° 8. 118°

Step-by-step explanation:

to know

- isosceles triangles have the base angles congruent

- the sum of angles in a triangle is 180

180 -42 = 138 sum of the two base angles

138 /2 = 69 is one base angle

31*2 = 62 are the 2 base angles

180 -62 = 118° vertex angle

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