What is the value of y in this triangle?

First find the angle st the bottom right of the triangle which is 46 the way I got it is because a straight line is 180 degrees and it gives u angle 134 so to find the opposite side just do 180- 134 which is 46 degrees.

a triangles angles all add up to 180 and we have both bottom angles. so to find the last angle just do 180 - 98 - 46 = 36.

so your last angle is 36 degrees

3units/ 5 feet = 60 units/ 100 feet3 units/ 5 feet = 18 units/ 30 feetthe dimensions of the scale drawing are 60 units by 18 units.hope this !