the measure of ∠dux can be calculated. m∠dux = 1° hint m∠dux = (40 + 90…

the measure of ∠dux can be calculated. m∠dux = 1° hint m∠dux = (40 + 90)°

m\angle DUX=(40 + 90)^{\circ}

$$ 40+90 = 130 $$

\(130\)