1. 5-MINUTE CHECK 1 2. Find the perimeter of the figure. Round to the nearest tenth if necessary. WARM UP: 48cm 1. Find the area of the figure. Round to the nearest tenth if necessary. 3.4cm²

2. AREA OF TRAPEZOIDS!

3. EX: 1 Find the area of steel used to make the side of the razor blade shown below.

4. YOU TRY! A.288 ft 2 B.295.5 ft 2 C.302.5 ft 2 D.310 ft 2 Find the area of the side of the pool outlined below.

5. EX: 2 Real World: Miguel designed a deck shaped like the trapezoid shown below. Find the area of the deck. We are missing base 2! How can we find it? USE RIGHT TRIANGLES! 3ft Therefore…since the base of our triangle is 3, and base 1 of the trapezoid is 9… Then base 2 of the trapezoid is 6! 6ft

6. CONTINUED… 3ft 6ft

7. Find the perimeter of the isosceles trapezoid! h=4 35 29 Use the right triangle to help determine the length of the legs! 33 The right triangles are 3-4-5’s! 55

8. AREA OF RHOMBI & KITES

9. EX:2 Find the area of the kite.

10. EX: 4 Find the area of the rhombus. 7in 9in

11. YOU TRY! A.48.75 ft 2 B.58.5 ft 2 C.75.25 ft 2 D.117 ft 2 Find the area of the kite.

12. YOU TRY! A.45 in 2 B.90 in 2 C.180 in 2 D.360 in 2 Find the area of the rhombus.

13. Challenge: One diagonal of a rhombus is half as long as the other diagonal. If the area of the rhombus is 64 square inches, what are the lengths of the diagonals?

14. YOU TRY! A.3 yd B.6 yd C.2.1 yd D.7 yd Trapezoid QRST has an area of 210 square yards. Find the height of QRST.

15. If the dimensions of the trapezoid below are doubled, what is the effect on the area and perimeter? CHANGING DIMENSIONS The area would be quadrupled. The perimeter would be doubled.

16. CONCEPT 3