Question

Prosze pomocy z te trzy zadania szybko!!

Answer 1

Verified answer

Odpowiedź:

8.

b = c = 13 cm

h = 5 cm

a = x + b + x

Z tw. Pitagorasa

x² + 5² = 13²

x² = 169 - 25 = 144

x = [tex]\sqrt{144} = 12[/tex]

a = 12 + 13 + 12 = 37

Odp.   37 cm

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9.

e = 36 cm     f = 48 cm

więc

a² = 18² + 24² = 324 + 576 = 900

a = [tex]\sqrt{900} = 30[/tex]

Odp.  a = 30 cm

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10.

c = 2 x = 24 cm

x = 12 cm

r = 13 cm

więc

d² + x² = r²

d² = 13² - 12² = 169 - 144 = 25

d =  [tex]\sqrt{25} = 5[/tex]

d =  5  cm

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