35 Standardized Test Prep Parallel Lines and Triangles Gridd

3-5 Standardized Test Prep Parallel Lines and Triangles Gridded Response 30 1, what is the value of w? 180-qu- 19° 2. What is the value of z? 220 180-126=54° 104° 54+9-73 130-73-107 3. What is the value of s? 4. What is the value of e? GO+69-246 69° 5. What is the value of t on the truss of the bridge? 55° nswers 2. 3. 4.

Solution

3. Sum of all angles in the trianlge is 180

Therefore, s+(s/7 +3) + (1/7 s -3) = 180

9s/7 = 180

s = 140

5. We know that since there is a perpendicular adjucent the last right triangle, we know that in the triangle

t+ 55+90 = 180 ( since sum of angles in triangle is 180)
t = 180-(55+90)
t = 35

So, t = 35