Dengan Phytagoras :
ST = √(30²-18²)
ST = √(900-324)
ST = √(576)
ST = 24cm
Keliling
= 18cm + 20cm + 30cm + 20cm + 24cm
= 112cm
mencari TS
30² - 18² = TS²
900 - 324 = 576
TS² = 576
TS = √576
TS = 24 cm
keliling = ( 30 + 20 + 20 + 18 + 24 )
= 112 cm (C)
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Dengan Phytagoras :
ST = √(30²-18²)
ST = √(900-324)
ST = √(576)
ST = 24cm
Keliling
= 18cm + 20cm + 30cm + 20cm + 24cm
= 112cm
mencari TS
30² - 18² = TS²
900 - 324 = 576
TS² = 576
TS = √576
TS = 24 cm
keliling = ( 30 + 20 + 20 + 18 + 24 )
= 112 cm (C)