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2 years ago

Can someone help me with 3 a and b?? Thank you

Mathematics

1 answer:

polet [3.4K]2 years ago

5 0

M∠ADB + m∠BDC = m∠ADC [<span>angle addition postulate]

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°

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