Im sorry but we cant see it pls re upload it
bro i'm not too sure we can help you with this..
There is two ways to do this
4+4+4 = 12
or
4*3=12
either way the answer is 12 4*3 is just like a shortcut of writing it out instead of having to add the numbers together. When it is "4 times 3" it is saying what is the sum of 4 added 3 times? another example can be 9*9 which is like the simplified version of 9+9+9+9+9+9+9+9+9= 81 9*9 = 81 which is the same thing. try this with other numbers and you will see that it will all result the same way.
* = times or "x" which is the multiplication sign
Answer:
12a cm2
2b cm2
(6a + b) cm2
Step-by-step explanation:
The complete question is
The figure consists of 12 congruent equilateral triangles. The area of one equilateral triangle is a cm2. The area of the hexagon, shaded slightly darker, is b cm2.
Which expressions represent the area of the entire shaded region, including the light and dark shading? Check all that apply.
12a cm2
2b cm2
(6a - b) cm2
(12a + 2b) cm2
(6a + b) cm2
The picture of the question in the attached figure
we know that
The area of the entire shaded region is equal to the area of the the light and dark shading
so
step 1
Find the area of the light shading
The area is equal to the area of six congruent equilateral triangles
step 2
Find the area of the dark shading
The area is equal to the area of the regular hexagon
step 3
1) Find the total area
2) Remember that the figure consists of 12 congruent equilateral triangles
so
3) The area of the light shading is the same that the area of the dark shading
so
6a=b
therefore