Question

For the shape below, Area = 84cm². Find x.

Answer 1

plz help :(

Answer 2

im sorry but there isnt

Answer 3

in the original diagram I have, there isnt a number there at all.

Answer 4

ill give you guys a photocopied version of this diagram.

Answer 5

is that any help?

Answer 6

and yes radar that is helping

Answer 7

The diagram shows that the bottom 2 sides there are equal. that means each is half of (2x+8)
Now you can really break this into 2 rectangles.
Upper one with sides of (2x+8) and 5, and bottom one with sides of (x+4) and 2.
Their areas together is the big shape's area:
$$
\text{shape_area} = \text{upper_rectangle} + \text{lower_rectangle} \\
84_{cm^2} = (2x+8)_{cm} \cdot 5_{cm} + (x+4)_{cm} \cdot 2_{cm}
$$ Now solve for x

Answer 8

Find the area of the (2x + 8)(7) or 14x + 56 now subtract from that 2(x+4)
14x + 56 - 2x - 8 giving you the area of 12x + 48
We are told that the area equals 84 so now we have 12x + 48 = 84
Can you now solve for x?