Question

In the figure shown, what is m_A? Explain.
A
57°
B
с
57; AABC is an equilateral triangle.
O 66; AABC is an isosceles triangle with base angles B and C. m B = m2C = 57, and
mZA +mZB + m2C = 180.
O 57; AABC is an isosceles triangle with base angles A and C. mZA = mZC.
O There is not enough information to find m A.

Answer 1

Answer:

angle a is 66 degrees since the two bottom sides are equal.

Step-by-step explanation:

two bottom sides are 57 so u add them together and get 114. All triangles equal 180 degrees so u subtract 180-114 and get 66. So angle a is 66 degrees