The quadrilateral shown is a parallelogram. if m∠adc = 125° and m∠1 = 30°, what is m∠2? a) 15° b) 25° c) 35° d) 55°

B) 25°

Step-by-step explanation:

Assuming the quadrilateral is the one shown in the picture attached, then a triangle ADC is form, where m∠ADC = 125° and m∠1 = 30°. The addition of the three angles of a triangle is equal to 180°, so:

m∠ADC + m∠1 + m∠2 = 180°

Replacing with the known values and isolating m∠2 we get:

125° + 30° + m∠2 = 180°

m∠2 = 180° - 125° - 30°

m∠2 = 25°

1 and 0

step-by-step explanation:

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