Question

Find area of triangle whose dimensions are 4cm, 4cm , 4cm.(hint equilateral
triangle)
(3)​

Answer 1

Answer:

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Step-by-step explanation:

Area of an equilateral triangle of side-length a is equal to:

4

3

a

2

Area of ΔABC=

4

3

4

2

=4

3

Let s be the side-length of the equilateral triangle with double the area, then:

4

3

s

2

=2×4

3

=8

3

⟹s

2

=32⟹s=

32

=

16×2

=4

2

Answer 2

Step-by-step explanation:

area of equilateral ∆ A = √3/4a²

=> A = √3/4 × 4²

=> A = √3/4×16

=> A = 4√3

=> A = 4 × 1.73 => 6.92 cm²