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# Chapter 11.1 and 11.2 PowerPoint PPT Presentation

Areas of parallelograms, triangles, kites, trapezoids and rho m bi. Chapter 11.1 and 11.2. Parallelogram. Find the perimeter and area of. Example 1. Perimeter and Area of a Parallelogram. A. Find the perimeter and area of. Example 1. A. 88 m; 255 m 2 B. 88 m; 405 m 2

Chapter 11.1 and 11.2

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Areas of parallelograms, triangles, kites, trapezoids and rhombi

## Chapter 11.1 and 11.2

### Parallelogram

Find the perimeter and area of

### Example 1

Perimeter and Area of a Parallelogram

A. Find the perimeter and area of

A.88 m; 255 m2

B.88 m; 405 m2

C.88 m; 459 m2

D.96 m; 459 m2

Find the area of

### Example 2

Area of a Parallelogram

Find the area of

A.156 cm2

B.135.76 cm2

C.192 cm2

D.271.53 cm2

### Example 3

Perimeter and Area of a Triangle

SANDBOXYou need to buy enough boards to make the frame of the triangular sandbox shown and enough sand to fill it. If one board is 3 feet long and one bag of sand fills 9 square feet of the sandbox, how many boards and bags do you need to buy?

### Example 3

PLAYGROUNDYou need to buy enough boards to make the frame of the triangular playground shown here and enough mulch to fill it. If one board is 4 feet long and one bag of mulch covers 7 square feet, how many boards and bags do you need to buy?

A.12 boards and 14 bags of mulch

B.11 boards and 13 bags of mulch

C.12 boards and 13 bags of mulch

D.11 boards and 14 bags of mulch

### Example 1

Area of a Trapezoid

SHAVINGFind the area of steel used to make the side of the razor blade shown below.

### Example 1

Find the area of the side of the pool outlined below.

A.288 ft2

B.295.5 ft2

C.302.5 ft2

D.310 ft2

### Example 2

Area of a Trapezoid

OPEN ENDEDMiles designed a deck shaped like the trapezoid shown below. Find the area of the deck.

### Example 2

Ariel is carpeting a room shaped like the trapezoid shown below. Find the area of the carpet needed.

A.58 ft2

B.63 ft2

C.76 ft2

D.88 ft2

### Example 3A

A. Find the area of the kite.

### Example 3B

B. Find the area of the rhombus.

### Example 3A

A. Find the area of the kite.

A.48.75 ft2

B.58.5 ft2

C.75.25 ft2

D.117 ft2

### Example 3B

B. Find the area of the rhombus.

A.45 in2

B.90 in2

C.180 in2

D.360 in2

### Example 4

Trapezoid QRST has an area of 210 square yards. Find the height of QRST.

A.3 yd

B.6 yd

C.2.1 yd

D.7 yd