Exterior Angle Theorem & Triangle Angle-Sum Theorem



Triangles 3Exterior AnglesName_________________________WorksheetUse the figure at the right for problems 1-3.4114800151765135240013524Find m3 if m5 = 130 and m4 = 70. Find m1 if m5 = 142 and m4 = 65.Find m2 if m3 = 125 and m4 = 23.3771900152400687101190068710119Use the figure at the right for problems 4-7.m6 + m7 + m8 = _______.If m6 = x, m7 = x – 20, and m11 = 80, then x = _____. If m8 = 4x, m7 = 30, and m9 = 6x -20, then x = _____.m9 + m10 + m11 = _______.38862002430145x°00x°38862001630045001143000251968000420370088138035°0035°5283200182880140°00140°4165600233680004191000195580x°00x°4165600233680004165600233680003594100233680002273300144780x°00x°For 8 – 12, solve for x.8.9. 546100-762000190500179070(5x)°00(5x)°16891003937012000120-2540009842500416560030480(2x)?00(2x)?7239008255(4x)°00(4x)°228600819150010.11. 1638300124460(3x + 54)?00(3x + 54)?355600137160x°00x°473710068580(x - 20)°00(x - 20)°57150029845046°65°82°142°125430046°65°82°142°1254312. Find m1, m2, m3, m4, and m5.Triangle 3 Worksheet Key60?2. 103?3. 32?4.180?5.50?6.25?7.360?8.30?9.75?10.27?11.50?12.m1 = 111? m2 = 69? m3 = 60? m4 = 60? m5 = 51? ................
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