Transcript Slide 1

11-1 HW SOLUTIONS
10. A = 528 cm2
24. b=13, h=17
12. A = 137.5 mm2
26. h=7, b= 14
14. A = 1440 in2
18. A = 98√3 mm2
20. A = 40.96√2 in2
22. A = 471.93 cm2
11-2 Areas of
Trapezoids,
Rhombi, and Kites
Ms. Andrejko
Real-World
Vocabulary
• Height of a Trapezoid- the perpendicular
distance between its bases
Area Formulas
• Area of Trapezoid
• A = ½ h (b1 + b2)
• Area of Rhombus or Kite
• A = ½ d1d2
Examples
Practice
Examples
Practice
Examples
• A trapezoid has base lengths of 6 and 15
centimeters with an area of 136.5 squarecentimeters. 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?
Practice
• A trapezoid has base lengths of 19.5 and 24.5
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?