Question

10 theta equal to 20 upon 21 then cos theta is equal to​

Answer 1

Answer:

First Learn to Ask Questions

Answer 2

Answer:

10 theta =p upon b

10 theta =20 upon 21

then

cos theta b upon h

by pythagoras theorem

p^2+b^2=h^2

(20)^2+(21)^2=(h)^2

400+441=(h)^2

841 = (h)^2

29 =h

so . cos theta b upon h

cos theta =21 upon 29