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TechMathI - 1.3
- 3. Name whether each is an acute, right, obtuse or straight angle.
- 4. Angle Addition m < BAD = 16 ° m < CAD = 38° OR m < 1 = 16° m < 2 = 38° What is the measure of <CAB? A C D B 2 1
- 5. Angle Addition 1) 2) m < CAD = 21 ° m < DAB = 42° Find <CAB m < 3 = 59° m < 4 = 52° Find < 3 + <4 X A C D B 2 1 W Y Z 3 4
- 6. Angle Addition 3) 4) m < CAD = 11 ° m < CAB = 62° Find <DAB m < 3 = 49° m < 3 + 4 = 102° Find m <4 X A C D B 2 1 W Y Z 3 4
- 7. You try! 1) 2) m < DAB = 54 ° m < CAB = 80° Find <DAB m < 3 + 4 = 119° m < 4 = 42° Find m <3 X A C D B 2 1 W Y Z 3 4
- 8. Vertical Angles “ across from” m <1 = m <3 AND m <2 = m <4 2 3 4 1
- 9. You try! Find the measures of angle 1 and 2. 42 ° 138 ° 2 1
- 10. W X Y Z Given: m<XWZ = 75 ° m<1 = 2x + 5 m<2 = x – 2 Find measure of <1 and < 2. 1 2
- 11. W X Y Z Given: m<XWZ = 115 ° m<1 = x + 12 m<2 = 2x – 2 Find measure of <1 and < 2. 1 2
- 12. W X Y Z Given: m<1 = 62 ° m<2 = x + 11 m<1 + 2 = 90 Find measure of <1 and < 2. 1 2