Test 10, Unit 8 (8.14 - 8.36) Flashcards Preview

8th Math - Pre-Algebra > Test 10, Unit 8 (8.14 - 8.36) > Flashcards

Flashcards in Test 10, Unit 8 (8.14 - 8.36) Deck (34):
1

circumference of a circle

 

C = pid

C = pi2r

2

area of a rectangle

 

A = lw

3

perimeter of a rectangle

 

P = 2l + 2w

4

area of a trapezoid

 

h(b1 + b2)

A = ---------------------

2

5

area of a triangle

 

A = 1/2bh

6

perimeter of a square

 

P = 4s

7

surface area of a cube

 

SA = 6e2

8

area of a parallelogram

 

A = bh

9

area of a square

 

A = s2

10

area of a circle

 

A = pir2

11

find the area of a square having 1.6-in. sides

 

A = s2

A = 1.62

A = 2.56 sq. in.

12

find the perimeter of an equilateral triangle having 4 ft. sides.

 

P = 3s

P = 3 * 4

P = 12 ft.

13

find the circumference of a circle having a 3 in. radius

 

C = pi2r

C = 3.14 * 2 * 3

C = 18.84 in.

14

find the area of a rectangle with a length of 12 in. and a width of 10 in.

 

A = lw

A = 12 * 10

A = 120 sq. in.

15

find the perimeter of a rectangle that is 15 in. x 24 in.

 

P = 2l + 2w

P = 2(24) + 2(15)

P = 48 + 30

P = 78 in.

16

find the surface area of a cube that has 5 ft. edges

 

SA = 6e2

SA = 6 * 52

SA = 6 * 25

SA = 150 sq. ft.

17

find the lateral surface area of a rectangular prism that is 18 ft. x 15 ft. x 8 ft.

 

LA = 2wh + 2lh

LA = 2(15)(8) + 2(18)(8)

LA = 240 + 288

LA = 528 sq. ft.

18

find the area of a circle if the radius is 5 inches.

 

A = pir2

A = 3.14 (52)

A = 3.14 (25)

A = 78.5 sq. in.

19

find the area of a parallelogram with a base of 25 in. and a height of 13 in.

 

A = bh

A = 25 * 13

A = 325 sq. in.

20

find the area of a triangle that has a 6 ft. height and a 9 ft. base

 

A = 1/2bh

A = 1/2 * 9 * 6

A = 27 sq. ft.

21

construct a right triangle with 3/4 in. and 1 1/2 in. legs

 

draw triangle

22

construct a triangle with 60o and 40o angles and an included side of 1 inch.

 

draw triangle

23

construct a triangle with 1 1/2 in, 1 in, and 1 1/4 in. sides

 

draw triangle

24

construct a triangle with 1 in, and 1 1/2 in. sides and an included angle of 50o

 

draw triangle

25

construct an angle congruent to the given angle

 

draw

26

construct a line parallel to AB

 

draw

27

T or F:  Isosceles triangles have no equal sides

 

false

28

T or F:  The number pi is irrational.

 

True

29

T or F:  If a triangle is equilateral, it is equiangular.

 

true

30

T or F:  A scalene triangle has two equal sides

 

False

31

T or F;  Similar triangles have the same size and shape

 

false

32

T or F:  there are 180o in the angles of a triangle

 

true

33

an acute triangle has three acute angles

 

true

34

T or F:  an obtuse triangle has two obtuse angles and one acute angle

 

false