monaa73 monaa73
  • 04-02-2021
  • Mathematics
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Top surface of an umbrella look like regular octagon as shown in the figure below find the area

Top surface of an umbrella look like regular octagon as shown in the figure below find the area class=

Respuesta :

PiaDeveau PiaDeveau
  • 09-02-2021

Answer:

Area of figure = 5,095 cm²

Step-by-step explanation:

Given:

Two trapezium

One rectangle

Find:

Area of figure

Computation:

Area of figure = Area of rectangle + Area of 2 trapezium

Area of figure = [L x B] + 2[(1/2)(Sum of parallel side)(Height)]

Area of figure = [118 x 15] + 2[(1/2)(118+15)(25)]

Area of figure = 1,770 + 3,325

Area of figure = 5,095 cm²

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