Across
- 2. 3(x+4)=27
- 5. the sum of angles in a quadrilateral
- 8. the number of sides in a triangle
- 9. 2x+3=11
Down
- 1. 2x+5=15
- 3. the number of degrees in a right angle
- 4. 5y-7+18
- 5. the perimeter of a rectangle with length 7 and width 5
- 6. 4(x-3)=20
- 7. the number of parallel sides in a trapezoid