Area of a Trapezoie If a trapezoid has an area of A square units, bases of b, units and b, units, and a height of h units, then A =h(b, + b). ih %3D 4. Find the Error. Robert and Kiku are finding the area of the trapezoid JKLM. Who is correct? Explain your reasoning. 14 cm K Robert Kiku A- 을(8) (14 +9) - 4(8)(14) + 9 A = %3D 18 cm %3D %3D M 9 cm = 56 +9 = 4(23) = 92 cm2 %3D = 65 cm? %3D

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter63: Volumes Of Pyramids And Cones
Section: Chapter Questions
Problem 31A: A zinc casting is in the shape of a frustum of a right circular cone. The larger base area is 280...
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who is correct , explain reasoning..
Кey Concept
Area of a Trapezoid
If a trapezoid has an area of A square units,
bases of b, units and b, units, and a height
of h units, then A =h(b, + b,).
ih
%3D
4. Find the Error. Robert and Kiku are finding the area of the
trapezoid JKLM. Who is correct? Explain your reasoning.
J
14 cm
K
Robert
Kiku
A-(8)(14 + 9)
= {(8)(24) + 9
A =
18 cm
M
9 cm
7.
= 56 +9
= 4(23)
= 92 cm2
= 65 cm?
Transcribed Image Text:Кey Concept Area of a Trapezoid If a trapezoid has an area of A square units, bases of b, units and b, units, and a height of h units, then A =h(b, + b,). ih %3D 4. Find the Error. Robert and Kiku are finding the area of the trapezoid JKLM. Who is correct? Explain your reasoning. J 14 cm K Robert Kiku A-(8)(14 + 9) = {(8)(24) + 9 A = 18 cm M 9 cm 7. = 56 +9 = 4(23) = 92 cm2 = 65 cm?
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