Chapter 4 Review

Tangent Ratio

100

Write the tangent ratios for angles a and b.

Angle a - Tan o = 8/6

Angle b - Tan o = 6/8

200

Find y.

Tan 70^o = y / 10

y = 27.47

300

Find a.

Tan 65^o = 24 / a

a = 11.19

400

First find the missing angle. Then use that angle to find z.

Angle = 68

Tan 68^o = 8 / z   z = 3.23

Probability

100

What is the probability that I will roll an even number AND then roll an odd number on a six-sided dice?

1/2 * 1/2 = 1/4

200

What is the probability that I will roll a 3 OR a 6 on a six-sided dice?

1/6 + 1/6 = 1/3

300

What is the probability that I will land on yellow AND then a number greater than 2

2/8 * 6/8 = 3/16

400

What is the probability that it will land on blue OR purple?

3/8 + 2/8 = 5/8

Triangle Similarity

100

Are these triangles similar?

No they are not similar

200

Are these triangles similar? If so write the similarity statement.

Yes, by SAS

RUN  CAT

300

Are these triangles similar? If so write the similarity statement. Find x

Yes, by AA   DEF   ABC

6/4 = x/2.4  x = 3.6

400

Are these triangles similar? If so write the similarity statement. Find x

Yes, by AA. CDB  CEA

5/3 = 7/x   x = 4.2

Chapter 2 & 3 Review

100

What is the angle relationship between e and h?

Alternate interior angles

200

Find x.

9² + x² = 14²

x = 8.06

300

Find the perimeter.

12² + 5² = x² , x = 13

Perimeter = 12+13+5 = 30

400

First find z. Then find the perimeter.

4/6 = x/10   z = 6.67

10² + 6.67² = y²   y = 12.02

perimeter = 10 + 6.67 + 12.02 = 28.69