1. 11-1 HW SOLUTIONS
10. A = 528 cm2 12. A = mm2 14. A = 1440 in2 18. A = 98√3 mm2 20. A = 40.96√2 in2 22. A = cm2 24. b=13, h= h=7, b= 14

2. 11-2 Areas of Trapezoids, Rhombi, and Kites
Ms. Andrejko

3. Real-World

4. Vocabulary
Height of a Trapezoid- the perpendicular distance between its bases

5. Area Formulas Area of Trapezoid Area of Rhombus or Kite
A = ½ h (b1 + b2)
Area of Rhombus or Kite
A = ½ d1d2

6. Examples

7. Practice

8. Examples

9. Practice

10. Examples
A trapezoid has base lengths of 6 and 15 centimeters with an area of square- centimeters. What is the height of the trapezoid?
One diagonal of a kite is four times as long as the other diagonal. If the area of the kite is 72 square meters, what are the lengths of the diagonals?

11. Practice
A trapezoid has base lengths of 19.5 and centimeters with an area of 154 cm2.What is the height of the trapezoid?
One diagonal of a kite is twice as long as the other diagonal. If the area of the kite is 400 square meters, what are the lengths of the diagonals?