tolong dijawab ya gaisss
pake caranya juga ya
yg cantik yg ganteng
please
..........
pake caranya juga ya
yg cantik yg ganteng
please
..........
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Jawaban:
7. AC²= AB²+BC²
= 16²+12²
= 256+144
= 400
AC=√400 = 20 cm
AD²= AC²+CD²
= 20²+10²
= 400+100
= 500
AD = √500 = 10 √ 5
= C. 10 √5
8.CB²=(AB-CD)²+ AD²
= 8²+15²
= 64+ 225
= 289 cm²
CB= √289 = 17 cm
= B. 17 cm