alas segitiga siku²
= 30² - 18²
= 900 - 324
=√576
= 24
k= 18 +20+24+20+30
=112 cm
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alas segitiga siku²
= 30² - 18²
= 900 - 324
=√576
= 24
k= 18 +20+24+20+30
=112 cm