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Big Ideas Math: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

3. Areas of Trapezoids and Kites

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Exercise 13 Page 302

Look at the kite as two triangles.

125m^2

Practice makes perfect

We want to find the area of the given kite. We can think of the kite as two triangles.

triangles

Now we will find the area of each triangle. We can see that those triangles are congruent. The height h of both triangles is 5 meters. The base b for both triangles is 25 meters. Next, we substitute these values into the formula for the area of a triangle.

A=1/2b* h

b= 25, h= 5

A=1/2 25* 5

Multiply

A=1/2* 125

MoveRightFacToNumOne

1/b* a = a/b

A=125/2

The area of the top triangle is 1252 square meters and the area of the bottom triangle is the same. Finally, let's add these two areas together to find the total area of the figure. Area of the Kite 125/2+ 125/2= 250/2m^2= 125m^2

Subchapter links

Try It p.298-300

Self-Assessment for Concepts & Skills p.300

Self-Assessment for Problem Solving p.301

Review & Refresh p.302

Concepts, Skills, & Problem Solving p.302-304