tolong bantuannya .............

2. AP=√PQ + AQ
=√16² + 12²
=√256 + 144
=√400
=20

3. BP=√OP - OB
=√15² - 9²
=√225 - 81
=√144
=12

5. d=√J² - (R + r)²
=√20² - (7 + 5)²
=√400 - 144
=√256
=16

6. J=√d² + (R +r)²
=√20² + (9 + 6)
=√400 + 225
=√625
=25

7. l=√J² - (R - r)²
=√17² - (10 - 2)
=√289 - 64
=√225
=15