I need help on this question

If trinalge abc= def by side-side-side triangle congruence theorem, then b=e by

Anna007 [38]

Answer: D: Corresponding parts of congruent triangles are congruent

Step-by-step explanation:

If two triangle are congruent using postulate of theorems of congruence then their corresponding parts are congruent by CPCTC rule.

The CPCTC rule says that if two triangles are congruent then their each corresponding part whether angles or sides must be equal.

Here if triangle abc= def by side-side-side triangle congruence theorem,

then b=e [which is a corresponding part of both triangles] by Corresponding parts of congruent triangles are congruent.

6 0

3 years ago

Read 2 more answers

Can I get some help please?

mamaluj [8]

Answer:

1) 68

/ \

4 17

/\

2 2

68=2*2*17

2) 104

/ \

4 26

/\ /\

2 2 2 13

104=2*2*2*13

3) 78

/\

2 39

/\

3 13

78=2*3*13

4) 225

/\

9 25

/\ /\

3 3 5 5

225=3*3*5*5

Second Part:

1) 45

/\

3 15

/\

3 5

45=3*3*5

2) 70

/\

2 35

/\

5 7

70=2*5*7

3) 54

/\

9 6

/\ /\

3 3 2 3

54=3*3*2*3

4) 126

/\

3 42

/\

3 14

/\

7 2

126=3*3*7*2

3 0

3 years ago

1. Use a piece of wool, thread or chord to measure the circumference of each of the circles found on the last page. To do this j

spayn [35]

Answer:

just doing this for my points!!! lol

Step-by-step explanation:

6 0

3 years ago

Mr. Hayden's Bible class collected $11

ki77a [65]

This is the only way I can think of this mathematically. This took a good 20 minutes for me. You need to guess and check. Like try 17 quarters, 50 nickels, and 37 dimes etc. until you get 11.00. My numbers are mathematically correct but we both know you cant have 18.909 quarters so. lol

Answer:

Quarters: 18.909

Nickels: 49.818

Dimes: 37.818

Somewhere around those numbers.

Step-by-step explanation:

$11.00 total in coins

Nickel = $0.05

Dime = $0.10

Quarter = $0.25

(n*0.05) + (d*0.10) + (q*0.25)

Solve the equation for q.

$q=\frac{1}{2} d$

(n*0.05) + (d*0.10) +( $\frac{1}{2} d$ *0.25)

Simplify the expression.

9d + 2n = 440

d - n = -12

Multiply both sides of the equation by -9.

-9d + 9n = 108

9d + 2n = 440

Sum the equations vertically to eliminate at least one variable.

11n = 548

$n=\frac{548}{11}$

Substitute the given value of n into the equation d - n = -12

$d-\frac{548}{11} =-12$

$d=\frac{416}{11}$

Substitute the given value of n into the equation $q=\frac{1}{2} d$

$q=\frac{1}{2} *\frac{416}{11}$

$q=\frac{208}{11}$

Finally

$d=\frac{416}{11}$ d = 37.818

$n=\frac{548}{11}$ n = 49.818

$q=\frac{208}{11}$ q = 18.909

6 0

3 years ago

If a1=7 and d=28, find a9

Mariulka [41]

Answer:

63

Step-by-step explanation:

Since a1=7 and the question is to find a9, you just have to multiply 7 and 9 which is 63

6 0

3 years ago