.4 90 = + 25 /−25 .5 °= .6 AB $(2) .7 $ $(2) = $ 2 (2 − 1) = $(2) = 2 (2 − 1) = A ס“מ3 D 6 BC 2 =6 / 2 ס“מ5 3 = 12 /: 3 =4 (+) (3 + 5) 4 32 = 2 = 2 =2= 180° + + + = 180° 2 + 2 = 180° /: 2 + = 90° 2