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Ch 1-4 Review(5) (6)1 2341 2 3 47 865567 8Given: ∠ 1 ≅ ∠ 3Given: ∠ 1 and ∠ 7 are supplementaryProve: ∠ 2 ≅ ∠ 4 Prove: ∠ 6 ≅ ∠ 3A(7) (8)• D1 2 3• E• FBCD Given: AC bisects ∠ DAB Given: BE ⊥ ACAD bisects ∠ CAE ∠ 1 ≅ ∠ 4Prove: ∠ 1 ≅ ∠ 3 Prove: ∠ 2 ≅ ∠ 3E•A12B34•CA(9) (10)ABEDECDF13B 24 C5 6Given: BE bisects AC Given: m∠ 1 = m∠ 3BE bisects AD m∠ 2 = m∠ 4AB = AEProve: BC = DE Prove: m∠ 5 = m∠ 6
Ch 1-4 Review(11) Refer to the figure to the right, name the lineswhich must be parallel (if any) given the followinginformation. Consider each question separately.(a) ∠ 1 ≅ ∠ 7 (f) ∠ 5 ≅ ∠ 9(b) ∠ 5 ≅ ∠ 14 (g) ∠ 8 ≅ ∠ 13(c) ∠ 2 ≅ ∠ 4 (h) ∠ 7 ≅ ∠ 2(d) ∠ 9 ≅ ∠ 16 (i) ∠ 4 ≅ ∠ 10(e) ∠ 3 ≅ ∠ 1 (j) m∠3 + m∠12 = 180A B C D5 6 7 8 9 10 11 12E F G H1 2 3 413 14 15 16(12) Solve for x and y if l m (13) Solve for x and y given the figure as markedl(2x + y)°(x)°(3x − 6)°(4x + 2y + 10)°m(y + 20)°(5x)°(2y)°(14) Is l m ? Support your answer. (15) Find the measures of all the numberedanglesA(6x − 10)°l(4x + 30)°3 4240°Bm(3x + 12)°D125°6E5C(16) Solve for x and y if AB CD and AC DE (17) Find the sum of the measures of the markedanglesA2x + yD95°45°y + 5BCE(18) Find the measure of each interior angle of a regular 15-gon.(19) The measure of each exterior angle of a regular polygon is 18°. How many sides does it have?
Page 1: Ch 1-4 Review(1) Refer to the figur

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