Jawabanmu

Jawaban paling cerdas!
2014-04-07T18:51:08+07:00
19.

sudut AOB + BOC = sudut DOE ( soalnya sudut balik )

BOC = 63
AOB = 61

so DOE = 63 + 61 = 124
2.

p1 = p3 = 123
p2 = 180 - 123 = 57
3.

A2 = B2 = 180 - B1 ( soalnya sudut pelurus )
= 180 - 75 = 105

a. A2 = 105 = x+5
x=105-5
= 100

b. A2 = A4 = 105