emistanswallows
emistanswallows emistanswallows
  • 22-02-2021
  • Mathematics
contestada

please help, i cant seem to get this right!!

please help i cant seem to get this right class=

Respuesta :

Gbese Gbese
  • 22-02-2021

Answer: 7ft

Step-by-step explanation:

The shape is a trapezium

Area of Trapezium= (1/2)(a+b)(h)

Area of Trapezium= 40sqft

a= x

b= 9ft

h= 5ft

40= (1/2)(x+9)(5)

40= (5(x+9)/2)

Cross multiply

80= 5(x+9)

80= 5x + 45

5x= 80-45

5x= 35

Divide both sides by 5

x= 7

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