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What is the m∠ABC?

1)m∠ABC = 60°
2)m∠ABC = 67°
3)m∠ABC = 120°
4)m∠ABC = 127°

What is the m∠ABC? 1)m∠ABC = 60° 2)m∠ABC = 67° 3)m∠ABC = 120° 4)m∠ABC = 127°-example-1
User Jewelhuq
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2 Answers

4 votes
i believe it is 4)m∠ABC = 127°
User Arjunpat
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7.9k points
5 votes

we are given

m∠BCD =67

and m∠BDC=60

we know that

m∠ABC is exterior angle

m∠BCD and m∠BDC are interior angles

exterior angle is sum of interior angles

so, we can write it as

m∠ABC=m∠BCD+m∠BDC

now, we can plug values

and we get

m∠ABC=60+67

m∠ABC=127

so, option-4.........Answer


User Troy Harvey
by
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