Answer: The measure of the vertex angle = 80°
Step-by-step explanation:
Angle sum property of triangle : The sum of the measures of the angles for any triangle is 180 degrees.
So,
'
Then, vertex angle = 
Hence, The measure of the vertex angle = 80°
639293!47,behdjdkevejskksnsbwjajMsbdhcifmensbjxocnfndoxold
I think the Answer is 76 in^2
Hope this helps
C
D
B
A
that's the answers, from top to bottom. hope this helps!
idk i am in 6th grade idk