Question

the area of an equilateral triangle side 40 cm is

Answer 1

Answer:

32000

Step-by-step explanation:

answer is 32000 by using 1/2 a^3

Answer 2

We know,

Area of an equilateral=

4

3

side×side

=

4

3

×1600

=

4

3

×400

=1.74×400

=692.82cm

2

.

We get, 692.82cm

2

.