Question

3. Each side of an equilateral triangle measures 8 cm. The area of the
trangle is​

Answer 1

Step-by-step explanation:

side of triangle=8cm

area of triangle=1/2×b×h

=1/2×8×8

=4×8

=32cm^2

Hope this helps you......

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Answer 2

Step-by-step explanation:

s = $\frac{1}{2}$(a+b+c)

= $\frac{8+8+8}{2}$

=$\frac{24}{2}$

= 12 cm

• (s-a)= 12-8

= 4cm

• (s-b)= 12-8

= 4cm

• (s-c)= 12-8
• = 4cm

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

= $\sqrt{12×4×4×4}$

= $\sqrt{4×3×4×4×4}$

= 4×4$\sqrt{3}$

= 16$\sqrt{3}$ cm²