Ineed to find the measure of each angle indicated and round to the nearest tenth.

Okay so because of the due to the rule that the hypotenuse is always the longest side on right angles so with the Pythagorean theorem we can infer that

a^2+b^2=c^2

19) 9.3^2+b^2=13.2^2
86.49+b^2=174.24
b^2=87.75
B=9.367

20) 2^2+b^2=7^2
b^2=45
b=6.708

21) 5^2+4^2=c^2
c^2=41
b=6.403

22) 15^2+15^2=c^2
c^2=450
c=21.213

23) 10^2+b^2=12^2
b^2=44
b=6.633

24) 6^2+b^2=9^2
b^2=45
b=6.708

Wow. that is a really cool question.