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ELEN [110]
3 years ago
5

Plz awnser this question its due in 30 minutes​

Mathematics
1 answer:
frez [133]3 years ago
4 0

First, find the area of the rectangle. The formula is already given, and the length and width is shown on the 'beautiful drawing'.

A=lw --> A = (19)(9)

The area of the rectangle is 171cm².

Find the area of the triangle. We see that it fits perfectly inside the triangle with some space to spare. It has the same height, so we have our 'h' value. Because there are 4cm and 3cm left for the width, subtract the sum of these numbers from the width.

12-7=5, so the base of the triangle is 5cm long (remember that the figure isn't drawn to scale. I almost missed this one).

A=\frac{b*h}{2} --> A=\frac{5*9}{2}=45/2=  22.5cm^2

Final step. Subtract the area of the triangle from the rectangle: 171-22.5=148.5.

The area of the shaded region is 148.5cm².

Hope this was helpful.

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