If the measure of angle BDC=100°, measure of angle A = 50°, and measure of angle DBC= 30°. which statement is true?
A. triangle ABD is obtuse
B. triangle ABC is isosceles
C. measure of angle ABD is 90°
D. triangle ABD is scalene

Respuesta :

B. triangle ABC is isosceles. The angles add up 180 degrees.

Answer:

B

Step-by-step explanation: