Respuesta :
Answer: Angles B and C are 60 degrees
Step-by-step explanation: The sum of a triangle is always 180 degrees. 180-40 leaves you with 120. Then 120/2 is 60.
Answer:
Angles B and C are 70 degrees.
Step-by-step explanation:
The sum of three angles of a triangle is 180 degrees.
Of these angle A in triangle ABC is given as 40 degrees.
Another input is that the triangle is isosceles. This means that AB=AC or in other words, angle B and angle C are equal.
Let the angle B or angle C be represented as x degrees.
Representing this in equation format:
A + B + C = 180
=> 40 + x + x = 180
=> 2x = 180 - 40 = 140
=> x = 140/2 = 70
So both the angles B and C are 70 degrees.
