Question

Help!!!! this is graded and no links!!!

Answer 1

Answer:

30

Step-by-step explanation:

Step 1: Find the area of the whole figure

The whole figure is a rectangle with a width of 4cm and a length of 12cm

The area of a rectangle can simply be calculated by multiplying the width by the length

So area = 4 * 12 which = 48

So the area of the whole figure is 48cm²

Step 2: Find the area of the non shaded area

The non shaded area forms a triangle with a base length of 9cm and a height of 4cm

The area of a triangle can be calculated using this formula

$A=\frac{bh}{2}$ where b = base length and h = height

That being said we plug in the values into the formula

$A=\frac{9*4}{2} \\9*4=36\\\frac{36}{2} =18$

Hence the area of the non shaded region is 18cm²

Final step: Our last step is to subtract the area of the non shaded region by the area of the whole figure

so the answer = 48 - 18 which equals 30

Hence the area of the shaded region is 30 square centimeters.