Question

What is the area of an equilateral truangke whose side measures 20cm (take sq root 3 =1.73)

Answer 1

Answer:

173.2 sq.cm (approx)

Step-by-step explanation:

measure of each side of the triangle = 20cm

.'. area of the triangle = √3/4x(20)² sq. cm.

=1.732x20x20/4 sq. cm.

= 173.2 sq. cm. (approx.)

Answer 2

Answer:

s = 20

b = 20                            [ in eq tri all side are equal]

Step-by-step explanation:

to find h

divide the triangle in half

there fore the base will be 10 and hypotenius will be 20

sustitute in pytho garas therom  20 sq -10 sq = h sq

h = root of 400-100

h= 17.3 ---------------[1]

area = 1/2[b][h]

       =   1/2[20][1.73]

         =    10[1.73]

area           =    17.3 m square