Jawabanmu

2014-06-07T04:57:56+07:00
15² = l² - ( 7 - 3 )²
225 = l² - 16
l² = 225 +16
l² = 241
l =√241 = 15,52 cm
2014-06-07T13:29:24+07:00
15² = l² - ( 7 - 3 )²
15 x 15 = l² - 4²
225 = l² - 16
= 225 +16
= 241
=√241
= 15,52 cm