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4 years ago

How to find angle acb

Mathematics

1 answer:

Crazy boy [7]4 years ago

4 0

Answer:

pls provide the diagram

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How do I find the measure of the interior angle?

nataly862011 [7]

Answer:

see the explanation

Step-by-step explanation:

we know that

The sum of the interior angles in any polygon is given by the formula

$S=(n-2)180^o$

where

n is the number of sides of the polygon

step 1

Find the sum of the interior angles in the given polygon

we have

$n=5\ sides$

substitute

$S=(5-2)180^o=540^o$

step 2

Find the value of x

we know that

$-3x+125+(45-x)+(-x+90)+80=540$

solve for x

$-5x+340=540$

$-5x=200\\x=-40$

step 3

Find the measure of each interior angle

substitute the value of x

Angle A

$-3(-40)=120^o$

Angle B

$80^o$

Angle C

$-(-40)+90=130^o$

Angle D

$45-(-40)=85^o$

Angle E

$125^o$

3 0

3 years ago

Which of the lines below has an undefined slope? A B 6 с LO D 5 O A. Line A O B. Line B O C. Line C O D. Line D

Anna71 [15]

Answer:

B. Line B

General Formulas and Concepts:

Algebra I

Undefined slopes are when x equals a certain number.

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

Step-by-step explanation:

From the given choices, B is the correct answer.

A has a slope of 0, so m = 0 and would become a horizontal line.

C has a negative slope, so it is not undefined.

D has a positive slope, so it is not undefined.

B shows a vertical line, and so it has an undefined slope.

8 0

3 years ago

What is the missing reason in the proof?

Helen [10]

A............zzzzzzzzzz

6 0

3 years ago

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Scrat [10]

24 units
9+9+3+3 =24.

3 0

3 years ago

Which expression is equivalent to 6 - (-2)? -6 + 2 -6 - 2 6+2 6-2

Sveta_85 [38]

Answer:

6+2

Step-by-step explanation:

$6 - ( - 2)$

Distribute the negative in.

Negative Multiply Negative must equal Positive.

$6 + 2$

7 0

3 years ago

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