Jeffharriaon
Jeffharriaon Jeffharriaon
  • 14-03-2021
  • Mathematics
contestada

ABCDE is a pentagon.
А
5 cm
5cm
B
E
4cm
4cm
С
D
8 cm
Work out the area of ABCDE.
(5 marks)
cm2

ABCDE is a pentagon А 5 cm 5cm B E 4cm 4cm С D 8 cm Work out the area of ABCDE 5 marks cm2 class=

Respuesta :

thebecks
thebecks thebecks
  • 14-03-2021

Answer:

area = 44 cm²

Step-by-step explanation:

rectangle area = bh = 8 x 4 = 32 cm²

triangle height² = 5² - 4³ = 25 - 16 = 9

triangle height = 3

triangle area = 1/2bh = 1/2(8)(3) = 12 cm²

32 cm² + 12 cm² = 44 cm²

area = 44 cm²

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