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Ira Lisetskai [31]
3 years ago
15

Danielle is making a quilt with triangles and squares. There are 4 colored triangles inside each square. The base and height of

each triangle is x + 4 inches as shown. Which polynomial represents the area of the colored triangles in square inches?
Mathematics
1 answer:
enyata [817]3 years ago
8 0

Answer:

(2x^2+16x+32)\ \text{sq. inches}

Step-by-step explanation:

b = h = Base = Height of triangle = (x+4)\ \text{inches}

Area of one triangle

A=\dfrac{1}{2}bh=\dfrac{1}{2}(x+4)(x+4)

There are 4 colored triangles so total area of the triangles is

4A=4\times \dfrac{1}{2}(x+4)(x+4)\\\Rightarrow 4A=2(x+4)^2\\\Rightarrow 4A=2(x^2+8x+16)\\\Rightarrow 4A=2x^2+16x+32

The area of the colored triangles is (2x^2+16x+32)\ \text{sq. inches}

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