Find x rounded to one decimal place SolutionHere as the sum

Solution

Here as the sum of all three angles of a triangle is 180 degree, so

its third base angle of given triangle = 180 -(90+30)= 180-120=60 degree.

so in below right triangle, we use the formula

sin A= height/hypotenues

or sin 60= 8/x here

or 0.866 =8/x

or x=8/0.866 =9.2

so value of x is 9.2

Answer