What is the length of each side of an equilateral triangle having an area of
a. 4cm
b. 5cm
c. 5cm
d. 6cm
Answers
Answered by
3
If a is the side, then area=(a/2)(3+4+5)=6a
Semi perimeter =(3/2)a
Area using Heron’s formula=sqrt(3/2a.1/2a.1/2a.1/2a)=root3/4.a^2
Hence root3/4.a^2=6a
a=8root3
Semi perimeter =(3/2)a
Area using Heron’s formula=sqrt(3/2a.1/2a.1/2a.1/2a)=root3/4.a^2
Hence root3/4.a^2=6a
a=8root3
Answered by
0
Answer:
see even mine also
Step-by-step explanation:
If a is the side, then area=(a/2)(3+4+5)=6a
Semi perimeter =(3/2)a
Area using Heron’s formula=sqrt(3/2a.1/2a.1/2a.1/2a)=root3/4.a^2
Hence root3/4.a^2=6a
a=8root3
That is 4
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