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13. A Classroon 9m by 9m

14. A Window 4 Feet by 2 feet.

15. A trapezoid-shaped piece of wood which bases measure 128m, 92m and it's height is 40m.​

Sagot :

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Question:

13. A Classroon 9m by 9m

14. A Window 4 Feet by 2 feet.

15. A trapezoid-shaped piece of wood which bases measure 128m, 92m and it's height is 40m.​

Answer:

Find the Area of the following,

13. A Classroom 9m by 9m

Area of Classroom = L × W

Area of Classroom = 9 × 9

Area of Classroom = 81 m²

14. A Window 4 Feet by 2 feet.

Area of Window = L × W

Area of Window = 4 × 2

Area of Window = 8 ft²

15. A trapezoid-shaped piece of wood which bases measure 128m, 92m and it's height is 40m.​

Area of Trapezoid formula,

[tex]\sf A = \frac{(b_1 + b_2)}{2} \times h\\\\where,\\b_1 = length \;of \;base \;1 = 92 \;m\\b_2 = length \;of \;base \;2 = 128 \;m\\h = height = 40 \;cm\\\\solve \;for \;A,\\\sf A = \frac{(92 \;+ \;128)}{2} \times 40\\\\\sf A = \frac{(220)}{2} \times 40\\\\\sf A = 110 \times 40\\\\\sf A = 4,400 \;m^{2}[/tex]

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