I’ll make you brilliant!
If you’re good with area then
*What is the area of the shaded figure*
Please full calculations thanks, and not complicated, either way
Thanks!

Area =25+6 =31m^2

Perimeter =30m^2  or 29.72m^2 to 2dp.

Step-by-step explanation:

We can show perimeter to match the 1/3 less rule in 10% values when the shape cuts into the square by 1/10th in total.  = 10/100 -1/3

Area of Whole shape = 35 cm (as we 7x5)  -1/3 of 1 x 4 = 033 x 4 =1.32 = 33.78sq^2

But minus 1/3 of 1 = 0.33 so we multiply this by 4 sides = 4 x 0.33 = 1.32 which still rounds as 1 and we find area

But because there are 2 changes on each shape we need to refresh 1.32 x 4 again = 5.28  = 29.72

So that area of 35 -5.28 = 29.72. =30m^2

Area of shaded region =Area of square- [Area of rect 1 + Area of rect 2+3]  Percentage = 5x 5 = 25 (r2+3 = 3x 1 x2) = 6

Area =25+6 =31m^2

Area Prove = un-shaded = 1 x 0.75 x 4 = 3

31/3 = 10 1/3 % un-shaded = 10.33% un-shaded.

Which proves the 10 2/3 value has been proved through a higher 10.66 perimeter value 10.66p = 10% -2/3

This represents the 2/3 curve

It also represents the way perimeter can represent area in ratio for un-shaded to shaded areas.  In this case it was 1 1/3 : 10

This is because if we wanted to add the total areas we would have 31m^2 +3m^2 which makes 34m^2

if we didn't round up initially then we would have had 30.72.+ 3 = 33.72m^2 for the entire shape area = 34m^2 shaded and un-shaded.

So in theory show 30.72m^2= Area for inner section shaped like a plus sign.

3m^2 = Area for unshaded squares combined

3 ÷ 4  = 0.75m^2= Area for each un-shaded corner.

added together = 3 + 30.78 = 33.78 = 34m^2 as once found.

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w