Find missing angles (straight line, corner, crossing lines)
Grade 7 Math Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
Bo props the classroom door open for a breeze, and one curious bee flies in. The door makes a 122° angle with the straight wall. What is angle x on the other side, in degrees?
Esme tilts a desk lamp so its arm leans 35° from the flat desk, aimed right at some very messy notes. What is angle x on the other side of the arm, in degrees?
Kira sews a straight stitch line out from the square corner of a quilt patch. One part of the corner is 27°. What is the other part, angle x, in degrees?
Luz draws a line from the square corner of a sheet of paper for a fold-it-yourself project. One part of the corner is 58°. What is the other part, angle x, in degrees?
Milo hangs a string of paper stars from the square corner of the window frame. One part of the corner is 33°. What is the other part, angle x, in degrees?
Noah runs a strip of tape out from the square corner of a box flap (the cat is very interested). One part of the corner is 71°. What is angle x, in degrees?
Ren ties two straight kite sticks so they cross. One angle between the sticks is 103°. What is angle x, next to it on the same stick, in degrees?
On Tala's town map, two straight streets cross by the library. One angle at the crossing is 64°. What is angle x, next to it along the same street, in degrees?
Ari lays a ribbon out from the square corner of the party table. The ribbon splits the corner into a 36° angle and angle x. What kind of angle pair are they?
- Complementary angles: they add to 90°
- Supplementary angles: they add to 180°
- Vertical angles: they are equal
Kira pushes the art-room door open (paint smell included). The door makes a 139° angle with the straight wall, and angle x is on the other side. Which equation finds x?
- x + 139 = 360
- x + 139 = 180
- x + 139 = 90
- x = 139