Question

Help with this??? please

Answer 1

Look at the picture.

Use the Pythagorean theorem.


`(19+r)^2=r^2+35^2\\\\19^2+2\cdot19\cdot r+r^2=r^2+1225\ \ \ |-r^2\\\\361+38r=1225\ \ \ |-361\\\\38r=864\ \ \ |:38\\\\r\approx22.737`

The diameter d = 2r.

Therefore


`d=2\cdot22.737=45.474\approx45.5`

Answer: 45.5