9.1.1 Developing Formulas for Triangles and Quadrilaterals − Worksheet (continued)
9. d 2 of a kite in which A = 12 x
2 y 3 cm 2 , d
1 = 3 xy cm
Example 4: 10. The stained-glass window shown is a rectangle with a base of 4 ft and a height of 3 ft. Use the grid to find the area of each piece.
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