Find what is x. the total interior angle of the triangle is 180 degrees
you can use this formula (n-2)180, n is the number of sides of the shape find what is x: 180-37-22=121 use the sin rule whereby, (sin 121)/4.357=(sin 22)/a (sin 121)a=( 4.356 ×(sin22) ) a= (4.356× sin22) /(sin 121)
