Assignment:
1. The side of a cube measure 2× - 3cm.
A. Write an algebraic expression for the perimeter of the cube.
B. If the perimeter of yhe cube is 48 cm, What is the value of x?
2. What algebraic expression gives the area of the shaded figure?
Pa answer po need kona po ngaun
1. The side of a cube measure 2× - 3cm.
A. Write an algebraic expression for the perimeter of the cube.
B. If the perimeter of yhe cube is 48 cm, What is the value of x?
2. What algebraic expression gives the area of the shaded figure?
Pa answer po need kona po ngaun
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Answer:
a. 12(2x - 3)
b. x = 1/2
Step-by-step explanation:
12(2x - 3) = 48
24x - 36 = 48
24x = 48 - 36
(24x = 12) / 24
4(side) = formula of perimeter of square
A) side length of cube = (2x-3) cm
perimeter of cube = 12(2x-3) cm
(this is because a cube has 12 edges)
B) 12(2x-3) = 48
2x - 3 = 4
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