A few days ago

# Math help please?

I am going to try to explain the problem..it is hard without providing a drawing of it. I have a rectangle..the height of the rectangle is 15cm..but inside the rectangle are two triangles..the two triangles are white and the rest of the rectangle is shaded..i need to kow the area of teh shaded part. One triangle has it’s point at the bottom left of the triangle..the bottom part of it is 15cm and the side is 12cm. the other triangle’s point is at the top right corner..there is a large shaded strip in the middle of the rectangle..does this make sense? i just need to know How to figure this out.

Top 2 Answers

A few days ago

Favorite Answer

First, find the area of the rectangle by multiplying length times width. Next, fingd the area of the triangles by multiplying the base times the height times half. Do the same to the other triangle and add thier areas up. Finally subtract the area of the triangles from the area of the rectangle. This should give you the area of the shaded region.

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A few days ago

area of a triangle is 1/2 base*height. maybe you can find the areas of the triangles from the given information an add them up ?

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