All categories

3 years ago

On a piece of paper, use a protractor to construct a triangle with angle measures of 20° and 30°.

Mathematics

2 answers:

Jobisdone [24]3 years ago

7 0

Answer:

Step-by-step explanation:

1. an acute angle triangle, wrong because , one of the angles has 130° and it is more than 90°

<h2><em>2. the third angle measures is 130°,. </em><em>correct because, 20°+30°+130°=180°</em></h2>

3.2 sides have the same length, wrong

<h2>4. it is an obtuse triangle, correct because,it has (greater than 90°) and two acute angles</h2><h2><em>5. all sides have different lengths,</em><em> correct</em></h2>

6. the third angle measures 50°, wrong because, 20+30+50=100 and 100 is not the sum of triangle angles.

Andrew [12]3 years ago

5 0

Answer:

option 2, 4, and 5 are correct.

Step-by-step explanation:

180 - (20+30) = 180 - 50 = 130

Obtuse triangle is a triangle that has one angle that is more than 90 degrees and all the sides have different lengths since all the angles are different.

You might be interested in

Vanessa is solving the equation -3 + 4x=9

mina [271]

Answer:

The -3

Step-by-step explanation:

Hope this helps :)

8 0

4 years ago

Read 2 more answers

Find the solution to the following system of linear equations by using

Makovka662 [10]

Answer:

{x,y}={

}

Step-by-step explanation:

More Icon

System of Linear Equations entered :

[1] x + 2y = 5

[2] x - y = 4

Graphic Representation of the Equations :

2y + x = 5 y + x = 4

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = y + 4

// Plug this in for variable x in equation [1]

[1] (y +4) + 2y = 5

[1] 3y = 1

// Solve equation [1] for the variable y

[1] 3y = 1

[1] y = 1/3

// By now we know this much :

x = y+4

y = 1/3

// Use the y value to solve for x

x = (1/3)+4 = 13/3

Solution :

{x,y} = {13/3,1/3}

6 0

4 years ago

I think it’s c but I need help

Oksana_A [137]

Answer:

x = 12

Step-by-step explanation:

In a right triangle (a triangle that has a ninety degree angle in it) the the square of the side opposite the right angle is always equal to the sum of the squares of the other two sides. Therefore, we can use the information we are given to figure out the missing side:

$15^2=225\\9^2=81\\225-81=144\\\sqrt[2]{144}=12$