Answer:
(q)
[tex]cb \: = \sqrt{4 {}^{2} + {3}^{2} } [/tex]
[tex]cb = 5[/tex]
[tex]q = \sqrt{ {13}^{2} - {5}^{2} } [/tex]
[tex]q = 12[/tex]
(r)
[tex] cb = \sqrt{ {13}^{2} - {5}^{2} } [/tex]
[tex]cb = 12[/tex]
[tex]r = \sqrt{12 {}^{2} - 5 {}^{2} } [/tex]
[tex]r = \sqrt{119} [/tex]
[tex]r = 10.91[/tex]
(s)
[tex]ab = \sqrt{20 {}^{2} - 16 {}^{2} } [/tex]
[tex]ab = 12[/tex]
[tex]s = \sqrt{12 {}^{2} + 8 {}^{2} } [/tex]
[tex]s = 4 \sqrt{13} [/tex]
[tex]s = 14.42[/tex]
Step-by-step explanation:
