Do Now: March 16th Mar 16: Jordan claims that all squares can also be classified as either a rectangle or a rhombus, and Reyna claims that all rectangles.

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Presentation transcript:

Do Now: March 16th Mar 16: Jordan claims that all squares can also be classified as either a rectangle or a rhombus, and Reyna claims that all rectangles and rhombuses can be classified as squares. Who is correct? Justify your answer.

Lesson 23-2: Area March 16, 2016

Today’s Objectives: Solve problems involving the area of parallelograms, rectangles, trapezoids, and triangles. Find areas of composite figures by breaking into two or more smaller figures.

Area SquareFt 2 or m 2 Rectangle Parallelogram Base Height b x h Base = 10ft Height = 2ft 10ft x 2ft=20ft 2

Notes Altitude Triangle height 1/2 LenghtBaseHeight

Base = 12cm Height = 9cm Area = (12cm/2) x 9cm 6 x 9 = 54cm 2 Bases Legs Trapezoid1/2 Height Bases

Notes b 2 = 22in b 1 = 13in ½(12in) x (13in+22in) h= 12in Composite Figure (6in) x (35in) A = 210in 2 Composite means made of more than one piece

Notes Box A = 2cm x 3cm A B C D Box B = 4cm x 3cm Triangle C = (½)3cm x 3cm Box D = 4cm x 2cm 6cm 2 12cm 2 4.5cm 2 8cm 2 A= 30.5cm 2

Notes 12 ft 2

Rotation: Group 1Group 2Group 3Group 4 1 st THAM 2 nd HMTA 3 rd MAHT 4 th ATMH

Exit Ticket: Mar 16: Exit Ticket: A trapezoid with a height of 6 meters has an area of 36 square meters. One of the bases is twice as long as the other base. How long are the bases of the trapezoid?