Download presentation

Presentation is loading. Please wait.

Published byClyde Short Modified over 8 years ago

1
Areas of Rectangles and Parallelograms Areas of Triangles, Trapezoids and Kites

2
On your grid paper, draw a rectangle and tell me what the area is. How do we label our answers? What is the easy way to remember how to find the area of a rectangle? Square?

3
The area of a rectangle is given by the formula ___________________, where A is the area, b is the base and h is the height. 12 in 19 in

4
Given a parallelogram with dimensions and height, see if you can cut your parallelogram into pieces to figure out what the area is? Hint: think rectangles! Parallelogram Area Conjecture: The area of a parallelogram is given by ________________, where A is the area, b is the base, and h is the height. Common mistakes?

5
See if you can cut and arrange your two congruent triangles to form a parallelogram. The area of a triangle is given by the formula __________________, where A is the area, b is the base and h is the height of the triangle. How is it like parallelograms?

6
See if you can cut and arrange your two congruent trapezoids to form a parallelogram. The area of a trapezoid is given by the formula _________________, where A is the area, b 1 and b 2 are the lengths of the bases, and h is the height of the trapezoid.

7
A rhombus is a ____________________, so we can use the parallelogram formula: __________. We can also use a kite formula for a rhombus. This formula is _________________, where d 1 and d 2 are the diagonals.

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google