Missing angles with letters: straight lines, corners and crossing lines
Grade 8 Math Worksheet
Circle the best answer, or write your answer on the line.
Noah's door opens against a straight wall. The angles on its two sides are (2x + 25)° and (3x − 5)°. Write an equation for x.
Pia sketches the wheelchair ramp at school. The ramp meets the flat ground, making angles of (6x)° and (2x + 20)° on its two sides. Write an equation for x.
Ren's seam splits the square corner of a quilt patch into (2x + 5)° and (x + 10)°. Write an equation for x.
Two roads meet in a straight line in Zee's paper sketch, with angles of (5x + 10)° and (3x + 10)° side by side. How many degrees is the (5x + 10)° angle?
A straight line splits a square corner of Ari's window into (3x + 7)° and (x + 3)°. How many degrees is the (3x + 7)° angle?
Bo's door opens against a straight wall, making angles of (4x + 10)° and (2x + 26)° side by side. How many degrees is the (4x + 10)° angle?
Jun's scissor blades cross. Two angles across from each other are (5x − 12)° and (3x + 20)°. What is x?
Kira draws two straight roads crossing on paper, making angles of (6x + 4)° and (2x + 40)° across from each other. What is x?
Luz draws two crossing lines on a clock face sketch. Two angles across from each other are (6x − 10)° and (4x + 16)°. What is x?
Milo folds paper so two creases cross. Two angles across from each other are (5x − 6)° and (3x + 28)°. What is x?