Answer:
The true statement is C.) BC = 5 inches
Step-by-step explanation:
i) The given triangle is an equilateral triangle.
ii) it is given that two sides AB and AC are equal. AB = AC = 5 inches.
Therefore ∠B = ∠C.
iii) it is given that ∠A = 60°
iv) therefore ∠B = ∠C = (180° - ∠A)÷2 = (180° - 60°)÷2 = 60°
v) therefore all three angles are equal , ∴ ∠A = ∠B = ∠C = 60°
vi) therefore BC = 5 inches is true statement
