Find missing angles (straight line, corner, crossing lines)
Grade 7 Math Worksheet
Circle the best answer, or write your answer on the line.
Two bike paths leave a straight trail at the same point near Pia's school. Along the trail the angles are 33°, x and 41°. What is x, in degrees?
Two roads cross by Zee's park. A bike path from the crossing splits one angle into adjacent angles, 38° and 27°. Angle x is across from that whole angle. What is x?
Ari cuts a pizza with two straight cuts that cross. A short cut from the middle splits one angle into 44° and 39°. Angle x is across from that whole angle. What is x?
Luz sticks a paper chain out from the square corner of a window. It splits the corner into complementary angles of 22° and (4x)°. What is x?
Milo's scissors open wide, and the blades cross like an X. Angle x is across from a 137° angle. What kind of angle pair are they?
- Supplementary angles: they add to 180°
- Complementary angles: they add to 90°
- Vertical angles: they are equal
Pia cuts a pizza with two straight cuts that cross in the middle (extra cheese everywhere). Angle x is across from a 76° angle. What kind of angle pair are they?
- Vertical angles: they are equal
- Supplementary angles: they add to 180°
- Complementary angles: they add to 90°
Zee's kite sticks cross like an X. The (x + 25)° angle is across from a 94° angle. Which equation finds x?
- x + 25 = 94
- x + 25 + 94 = 360
- x + 25 + 94 = 90
- x + 25 + 94 = 180
Bo's tent poles cross at the top like an X. The (4x)° angle is across from a 96° angle. Which equation finds x?
- 4x + 96 = 90
- 4x + 96 = 360
- 4x = 96
- 4x + 96 = 180
Kira cuts a round pizza into three slices from the center (one slice is clearly the biggest). Two slice angles are 85° and 70°. What is the third angle, x, in degrees?
Luz paints three spokes of a bike wheel bright colors. The painted spokes make angles of 62°, 104° and x around the hub. What is x, in degrees?