If two angles of a triangle are 60° ℎ, ℎ ℎ (a) Right angled (b) Scalene (c) Equilateral (d) Isosceles but not Equilateral
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Let triangle ABC, in which the base angle is 60
o
∠A+∠B+∠C=180
o
⟹∠A=180
o
−60
o
−60
o
⟹∠A=60
o
Therefore, ΔABC is 60
o
equilateral triangle.
Step-by-step explanation:
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