Grade 9 Angles in a triangle

These are questions on angles in a triangle . These were compiled by Kuta Software

Transcript

1. Kuta Software - Infinite Geometry Name___________________________________ Angles in a Triangle Date________________ Period____ Find the measure of each angle indicated. 1) 2) ? 65° 40° 57° ? 3) 4) 85° 20° 50° ? 130° ? 5) 6) 137° ? 102° 100° ? 35° 7) 8) 155° 60° ? 30° ? 20° ©J K2L0H181m eK4uNtUaN 9STo5fBtMwXa2ree9 sLYLRCP.H g CAHlGlA PrCiAgRhatqsv rrxevsve3rRvceOd8.K 5 CMoaBd9e8 5wAiAtghM vIqnEf6i7nNi8tre7 QGYeXoEm9eatyrQyf.Q -1- Worksheet by Kuta Software LLC
2. 9) 10) ? 39° 35° 40° 20° 65° 50° 60° 11) ? 12) 86° ? 27° 84° ? 35° 23° 36° 13) 14) 156° ? 155° 115° 35° 20° 85° ? 15) 16) 45° 45° 68° 68° 79° 100° ? 75° 60° ? ©s m2a0q1m1S MKWuGtfad 6SmozfotkwEaWrDe1 GLbLfCl.I h yAKlklM kr4ingCh7tes7 BrqeVsIe9rXv4e7dC.r S pMPaadJed WwAiXtjhN GIsndfGiznFiXtoeq 8GlemoymfeUtgr1yh.c -2- Worksheet by Kuta Software LLC
3. Solve for x. 17) 18) 55° x + 74 8x + 2 54° 70° 19) 60° 20) 64° 27° x + 51 97 + x 60° 80° Find the measure of angle A. 21) 22) x + 59 x + 37 x + 67 A 84° x + 51 A 23) 24) A 3x − 6 A 130° x + 23 8x + 4 ©k 22X0n1v1k 3KjurtSad ySMonfUtBwZagrVe3 hLvLCCh.F N 4AJlilo greiUgNhVtJsT Xr8eCsBenrGvAezdn.Y V 6MlaEdhe2 AwwiDtUhX fIUnEf1iknUittWe8 wG7ehosmUeotUrSyh.B 80° 4 x + 17 -3- Worksheet by Kuta Software LLC
4. Kuta Software - Infinite Geometry Name___________________________________ Angles in a Triangle Date________________ Period____ Find the measure of each angle indicated. 1) 2) ? 65° 40° 57° ? 58° 50° 3) 4) 85° 20° 50° ? 130° 45° ? 30° 5) 6) 137° ? 102° 100° ? 35° 145° 135° 7) 8) 155° 60° ? 30° ? 20° 85° 130° ©k T2B0m1o1h wKFuntqa8 xSXoCfutVwga6rTe6 ULxLXCx.o N qAalXlZ Mr8iegfhytzsB OrUenspekrzvTePdD.d U OM5aUdOeb aw7ictjhL qIgnafLiYn3i1tpeK vGOeNoSm0e8tYrbyN.L -1- Worksheet by Kuta Software LLC
5. 9) 10) ? 39° 35° 40° 20° 65° 50° 21° 60° ? 70° 11) 12) 86° ? 27° 84° ? 35° 23° 36° 31° 64° 13) 14) 156° ? 155° 115° 35° 20° 31° 85° ? 85° 15) 16) 45° 45° 68° 68° 79° 100° ? 75° 60° ? 109° 137° ©P 82B0L1z18 BKWuCtMaP USPoHfttNw0a2rWeu 7LFLRC3.n z dATlZlh trDijg3hftCsI krTe1sDeZrmvYeLd1.y K 7Mpa8djeT Mwiirtkhs fIUnif8icnpiLtyeJ hGWeIoBmneVtyruyc.9 -2- Worksheet by Kuta Software LLC
6. Solve for x. 17) 18) 55° x + 74 8x + 2 54° 70° −3 60° 6 19) 20) 64° 27° x + 51 97 + x 60° 80° −6 −11 Find the measure of angle A. 21) 22) x + 59 x + 37 x + 67 A 84° 30° x + 51 A 44° 23) 24) A 3x − 6 A 130° x + 23 8x + 4 30° 80° 4 x + 17 35° Create your own worksheets like this one with Infinite Geometry. Free trial available at KutaSoftware.com ©K a25041P1E CKCuCtWae USeo8fOtdwCazrHer WLFLxCy.z 4 4AllCl2 CrWiDgXhvtVsd crPeusFeSrmv0endz.B i wMMaiddem nw2ictahy mIlnZf4iInTiBt1eO iGkeHoQmyeXtBrRy6.8 -3- Worksheet by Kuta Software LLC