Question

Please help me solve #18 and #19 please! Find the missing side. Round to the nearest tenth.

Answer 1

19

Is easy if we rotate the figure in a next way

we can calculate using the law of sines

First we found the missing angle

180-36-90=54

then we can use the law of sines

`(x)/(\sin(90))=(13)/(\sin (54))`

then we clear x

`x=(13\cdot\sin (90))/(\sin (54))=16.1`

x=16.1