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3 years ago

Two angle measures in a triangle is 81 and 62 what is the missing angle

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

Answer:

Step-by-step explanation:

Let the missing angle be x then .,

81 + 62 + x = 180 (being sum of angles of triangle )

143 + x = 180

x = 180 - 143

x = 37

<em>Therefore the missing angle is 37</em>

julsineya [31]3 years ago

5 0

Answer: 37

Step-by-step explanation:

Interior angles of a triangle add to 180 degrees. 81+ 62 + x = 180

143 + x =180

X = 37

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3 years ago

Determine which of the lines are parallel and which of the lines are perpendicular. Select all of the statements that are true.

grandymaker [24]

Answer:

Lines a and b are parallel

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Lines d and c are perpendicular

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Part 1) Find the slope of Line a

we have the points

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substitute in the formula

$m=\frac{6-4}{3+3}$

$m=\frac{2}{6}$

simplify

$m_a=\frac{1}{3}$

Part 2) Find the slope of Line b

we have the points

(-10,-3) and (-8,3)

substitute in the formula

$m=\frac{3+3}{-8+10}$

$m=\frac{6}{2}$

$m_b=3$

Part 3) Find the slope of Line c

we have the points

(0,5) and (3,-4)

substitute in the formula

$m=\frac{-4-5}{3-0}$

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Part 4) Find the slope of Line d

we have the points

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substitute in the formula

$m=\frac{-4+7}{13-4}$

$m=\frac{3}{9}$

simplify

$m_d=\frac{1}{3}$

Part 5) Compare the slopes

Remember that

If two lines are parallel then their slopes are the same

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we have

$m_a=\frac{1}{3}$

$m_b=3$

$m_c=-3$

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therefore

Lines a and b are parallel (slopes are equal)

Lines a and c are perpendicular (slopes are opposite reciprocal)

Lines d and c are perpendicular (slopes are opposite reciprocal)

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3 years ago

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maxonik [38]

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Ierofanga [76]

Answer:

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3 years ago

Two angle measures in a triangle is 81 and 62 what is the missing angle￼

Two angle measures in a triangle is 81 and 62 what is the missing angle