nicholasesquivel0505
nicholasesquivel0505 nicholasesquivel0505
  • 04-05-2021
  • Mathematics
contestada

Item 13
You are planting a garden in the shape of an equilateral triangle as shown in the diagram. You want to find the area of the garden to determine how much topsoil you will need.

Item 13 You are planting a garden in the shape of an equilateral triangle as shown in the diagram You want to find the area of the garden to determine how much class=

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akposevictor
akposevictor akposevictor
  • 09-05-2021

Answer:

4√3 ft²

Step-by-step explanation:

Area of the garden = ½*b*h

b = 4ft

To find h, apply trigonometric function:

Reference angle = 60°

Opposite = h

Hypotenuse = 4 ft

Apply SOH:

Sin 60° = Opp/Hyp

Sin 60 = h/4

4*sin 60 = h

4*√3/2 = h (sin 60 = √3/2)

2*√3 = h

h = 2√3

Find the area:

Area = ½*b*h

= ½*4*2√3

= 4√3 ft²

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