Question

help me solve these problems finding the length of the missing sides
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Answer 1

Answer:

9. 20

10.

$\sqrt{27}$

Step-by-step explanation:

according to Pythagoras theorem

$c = \sqrt{ {a}^{2} + {b}^{2} }$

9.

$29 = \sqrt{ {a}^{2} + {21}^{2} }$

${a}^{2} = 841 - 441 = 400$

$a = 20$

10.

$c = \sqrt{ { \sqrt{6} }^{2} + { \sqrt{21} }^{2} }$

$c = \sqrt{6 + 21} = \sqrt{27}$