Răspuns :

Răspuns:

Explicație pas cu pas:

BC² = AB² +AC²

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a) BC² = 3² +4²

BC²= 9+16

BC =√25

BC= 5 dm

BC²= 9+16

BC =√25

BC= 5 dm

c)BC² = 9² +12²

BC²= 81+144

BC =√225

BC= 15 dm

e)AB² =BC² - AC²

AB² = 13² -5²

AB² = 169 -25

AB = √144

AB = 12 cm

b) BC² = 6² +8²

BC²=36+64

BC =√100

BC= 10 cm

d) a) BC² = 16² +30²

BC²=256 +900

BC =√1156

BC= 34 m

f) AC² = BC² - AB²

AC²= 51² - 45²

AC² = 2601 -2025

AC = √576

AC =24 m

Succes la mate

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