3 years ago

Please answer these but do it step by step, thanks

1 answer:

max2010maxim [7]3 years ago

3 0

M∠ADB + m∠BDC = m∠ADC <span>
x + x + 10 = 60
2x + 10 = 60
2x = 60 - 10
2x = 50
x = 50/2
x = 25

a
m</span>∠ADB = x = 25°

b
m∠BDC = x + 10 = 25 + 10 = 35°

с
Angle Addition Postulate

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