Question

Angle B = ___ degrees, rounded to the nearest tenth.

Answer 1

Ok, we can find x with the Pythagoras theorem, considering that the lower leg is half of 42, so it's 21. Let's do it:

`24^2=x^2+21^2`

We need clear x:

`576=x^2+441`
`x^2=576-441`
`x^2=135`
`x=\sqrt[]{135}`
`x\approx11.6`

x is equal to 11.6 rounded to the nearest tenth. ​