Question

Area of an equilateral triangle of side 5 cm is ______
√3/4 cm²
25√3/4 cm²
20√3/4 cm²

Answer 1

Answer:

ANSWER

Area of equilateral triangle =

4

3

a

2

⇒4

3

=

4

3

a

2

⇒16

3

=

3

a

2

⇒a

2

=16

⇒a=

16

⇒a=4 cm

Hence length of the diagonal of the square is 4 cm