Solve for x 14 CompositionDecomposition Activity Section 112 Bellwork A male punky fish has 9 stripes while a female punky fish has 8 stripes If the number of stripes on all the punky fish in a tank totals 86 what is the ratio of male fish to female fish ID: 376559
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Slide1
Bellwork
Solve for x
14Slide2
Composition/Decomposition Activity
Section 11.2Slide3
Bellwork
A male punky fish has 9 stripes, while a female punky fish has 8 stripes. If the number of stripes on all the punky fish in a tank totals 86, what is the ratio of male fish to female fish?Two triangles of equal area have congruent sides as shown. Determine the degree measure of x, the smaller of the two vertex angles.
14
2x
o
x
oSlide4
Areas of Trapezoids, Rhombuses and Kites
Section 11.2Slide5
The Concept
Yesterday we completed a worksheet that discussed the idea of composition and decomposition of objects in order to find areaToday we’re going to look at how we can use this to develop and area formulas for each of the three objectsSlide6
Review of shapes
b
h
Parallelogram
b
h
TriangleSlide7
Trapezoids, Kites & Rhombuses, oh my!
Let’s review these objects…TrapezoidQuadrilateral in which only two sides are parallel
RhombusEquilateral parallelogramKite
Quadrilateral with two pair of adjacent congruent sidesSlide8
Trapezoid
b
1
b
2
hSlide9
Trapezoid Example
5
15
8
Find the area of the object belowSlide10
Trapezoid Example
10
22
12
12
Find the area of the object belowSlide11
Rhombus
d1d2Slide12
Rhombus example
2415
Find the area of the object belowSlide13
Rhombus example
10
10
60
o
Find the area of the object belowSlide14
Kite
d1d2Slide15
Kite Example
5123.5
Find the area of the object belowSlide16
Kite Example
20
Find the area of the object belowSlide17
Homework
11.2 Exercises10, 12, 15, 16-18, 24-29