The correct option is A 155.88 cm3
We know that volume of a prism = Area of base × height
∵ The base is triangular and has each side of the same length, so the base is an equilateral triangle.
Now, area of the base (equilateral triangle)
=√34×side2
=√34×62
=15.588 cm2
∴ Volume of the prism = base area × height
=15.588×10
=155.88 cm3