Question

Fine the area of equilateral triangle of side 6cm

Answer 1

Answer:

S=a+b+c/2

S = 6+6+6/2

S=18/2

S=.9

Step-by-step explanation:

$\sqrt{s (s - a)(s - b)(s - c) }$

$\sqrt{9(9 - 6)(9 - 6)(9 - 6)}$

$\sqrt{9 \times 3 \times 3 \times 3}$

$\sqrt{243}$

$15.8$