Kunci Jawaban Matematika Kelas 8 Semester 2 Kurikulum 2013 Halaman 22 23 24: Pythagoras

a. Titik (10, 20) dan (13, 16)

= Jarak √{(20-16)⊃2; + (10-13)⊃2;}

= √{4⊃2; + (-3)⊃2;}

= √(16+9)

= √25

= 5 satuan

b. Titik (15, 37) dan (42, 73)

= Jarak √{(73-37)⊃2; + (42-15)⊃2;}

= √(36⊃2; + 27)⊃2;

= √(1296+729)

= √2025

= 45 satuan

c. Titik (-19, -16) dan (-2, 14)

= Jarak √{(14-(-16))⊃2; + (-2-(-19))⊃2;}

= √(30⊃2; + 17)⊃2;