check the picture below.
recall that in a rhombus, both diagonals bisect each other, namely cut each other in equal halves and at right-angles, so we end up with 4 right-triangles.
now, the sides in a rhombus are all equal, thus the perimeter is 13+13+13+13.
Answer:
21.6
Step-by-step explanation:
you divide 129.60 by 6 and you get 21.6.
Answer:
Correct answer: V = 55.36 cm³
Step-by-step explanation:
Given:
a = 4 cm edge of the bases
H = 8 cm the height of the prism
Area of the base is equilateral triangle which area is:
B = a² · √3 / 4 = 4² · 1.73 / 4 = 16 · 1.73 / 4 = 6.92 cm²
Volume of the prism is:
V = B · H = 6.92 · 8 = 55.36 cm³
V = 55.36 cm³
God is with you!!!
