Question

7. Perhatikan gambar berikut! O ensinem K 17 cm 10 cm N M L 8 cm Panjang KN adalah ... cm.​

Answer 1

Penjelasan dengan langkah-langkah:

pythagoras KLM:

[tex] {kl}^{2} = {km}^{2} - {lm}^{2} \\ {kl}^{2} = {17}^{2} - {8}^{2} \\ {kl}^{2} = 289 - 64 \\ {kl}^{2} = 225 \\ kl = \sqrt{225} \\ kl = 15[/tex]

pythagoras NLM

[tex] {nl}^{2} = {nm}^{2} - {lm}^{2} \\ {nl}^{2} = {10}^{2} - {8}^{2} \\ {nl}^{2} = 100 - 64 \\ {nl}^{2} = 36 \\ nl = \sqrt{36} \\ nl = 6[/tex]

Jadi KN = KL - NL

KN = 15 - 6

KN = 9 cm