Jeopardy 7.1 – 7.2 January 7 th , 2016
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Jeopardy7.1 – 7.2
January 7th, 2016
Ratios ProportionsSimilar
Polygons
MoreSimilar
Polygons!!Grab Bag
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
Ratios - 10
• Write the ratio of the first measurement to the second measurement
• Height of book 11 inches
• Height of bookshelf 3 feet 3 inches
Answer Ratios – 10
11 : 39
11/39
Ratios - 20
• The ratio of country albums to jazz albums in a music collection is 2 : 3. If the music collection has 45 albums, how many are country albums?
Answer Ratios – 20
18
Ratios - 30
• The lengths of the sides of a triangle are in the extended ratio 3 : 6 : 8. The triangle’s perimeter is 510 cm. What are the lengths of the sides?
Answer Ratios – 30
• 90 cm, 180 cm, 240 cm
Ratios - 40
• Solve the proportion:
•
.
Answer Ratios – 40
2
Ratios - 50
• Write the ratio of the first measurement to the second measurement
• weight of a cupcake: 2 oz
• weight of a cake: 2 lb 2 oz
Answer Ratios – 50
1:17
1/17
Proportions - 10
• The perimeter of a rectangle is 280 cm. The ratio of the width to the length is 3 : 4. What is the length of the rectangle?
Answer Proportions – 10
80 cm
Measuring Proportions - 20
• A band director needs to purchase newuniforms. The ratio of small to medium tolarge uniforms is 3 : 4 : 6.
• Question:
• If there are 260 uniforms to purchase in all, how many will be small?
Answer Proportions – 20
60
Proportions - 30
• Solve the proportion.
• X=?
Answer Proportions – 30
-1
Proportions - 40
• The measures of two complementary angles are in the ratio 2 to 3. What is the measure of the smaller angle?
Answer Proportions – 40
36
Proportions - 50
• If 8 hens lay 14 eggs in 6 days, how many eggs will 24 hens lay in 6 days?
Answer Proportions – 50
42
Similar Polygons - 10
Corresponding ______________ are congruent in similar polygons.
Answer Similar Polygons – 10
Angles
Similar Polygons - 20
Answer Similar Polygons –20
Similar Polygons -30
• The polygons are similar. Find the values of the variables.
Answer Similar Polygons– 30
X=30˚
Y=4
Similar Polygons - 40
• Are the polygons similar? If so, write a similarity statement.
Answer Similar Polygons – 40
No
Similar Polygons - 50
Answer Similar Polygons – 50
X=5
More Similar Polygons! -10
• Corresponding side lengths are ________________________ for similar polygons.
Answer More Similar Polygons!– 10
Proportional
More Similar Polygons! -20
• List the pairs of congruent angles and the extended proportion that relates the sides.
Answer More Similar Polygons!– 20
More Similar Polygons! -30
• The polygons are similar, find the value of y.
Answer More Similar Polygons!– 30
Y= 10.5
More Similar Polygons! - 40
• Determine if the polygons are similar, if so, find the scale factor.
Answer More Similar Polygons!– 40
2 : 3
More Similar Polygons! - 50
• The polygons are similar, find the value of each variable.
Answer More Similar Polygons!– 50
X=12.75
Y=18.5
Grab Bag - 10
• How many ounces are in a pound? (We used this for conversions)
Answer Grab Bag– 10
16 oz = 1 lb
Grab Bag - 20
• Find the value of x.
Answer Grab Bag– 20
X = 10.2
Grab Bag - 30
• Are the triangles similar? (Hint: Think about what we learned yesterday!)
Answer Grab Bag– 30
Yes, by Angle Angle Similarity
Grab Bag - 40
Answer Grab Bag– 40
Grab Bag -50
• Tell a math joke.
• Note: It cannot be why is 6 afraid of 7 (because 7 ate 9)
Grab Bag– 50
Many possibilities
What did the little acorn say when he grew up?Geometry (Gee, I’m a tree)
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