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Mathematics, 29.01.2020 18:49 help1219

Δabc is isosceles. angles b and c are congruent. the m∠a = 40°, m∠b = (3x + 1)°. find x.

a) 13
b) 23
c) 46.3
d) 70

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Δabc is isosceles. angles b and c are congruent. the m∠a = 40°, m∠b = (3x + 1)°. find x.

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