A fraction that is equivalent to 1/4 is 25/100
Add up all the sides is one way I think and then try to find the volume like add them all up then divide them by 2
Let’s first find the angle y
Angle y = 180-(140+10)(angle sum property)
Angle y = 180-150
Angle y = 30 degrees
Angle x = 180- 110 ( linear pair )
Angle x = 70
Angle z = 180-(70+90)( angle sum property)
Angle z = 180-160
Angle z = 20