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Pavel [41]
3 years ago
13

Three straight lines are shown in the diagram.

Mathematics
1 answer:
ANTONII [103]3 years ago
8 0

The sizes of angles a, b and c of the diagram not drawn to scale are 50°, 100°, and 30° respectively.

The angles a, b and c are angles in a triangle.

Therefore, the sum of a , b and c should be equals to 180 degrees.

<h3>Angle a</h3>

let's find angle a using the rule as follow:

  • sum of angle at a point is 360 degrees

Therefore,

a = 360 - 310 = 50°

<h3>Angle b</h3>

let's find angle b using the rule as follow:

  • Angle on a straight line is equals to 180 degrees.

Therefore,

b = 180 - 80 = 100°

<h3>Angle c</h3>

let's find angle c using the rule as follow:

  • Sum of angle in a triangle is 180 degrees

Therefore,

c = 180 - 50 - 100 = 30°

learn more on angles here: brainly.com/question/22506842?referrer=searchResults

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(05.06 MC)
kondaur [170]
Your answer is 78.

Area of a triangle: 1/2 base * height

Area of a rectangle: length x width

Calculate the area of all the faces separately and add them up to solve.
5 0
3 years ago
Question 3
marin [14]

To find differences in the angles of the intersections we must know how many degrees each angle corresponds to. We must also take into account that the sum of the internal angles must equal 180°.

<h3>What is a triangle?</h3>

A triangle is a polygon that is characterized by having three sides, three vertices, and three angles. An indispensable rule of the interior angles of the triangles is that they must add up to 180º.

Triangles are classified according to their characteristics as shown below:

  • Equilateral triangle: It is a type of triangle that is characterized by having all equal sides. Consequently, all the angles of an equilateral triangle are 60º. The equilateral triangle is a regular polygon.
  • Isosceles triangle: It is a type of triangle that is characterized by having two equal sides and one different. Consequently, it also has two equal angles.
  • Scalene triangle: A scalene triangle is one that is characterized by having all its sides and angles unequal, that is, different from each other.

According to the above, depending on the measurements of the length of the sides and the angles of a triangle, its characteristics and classification change.

Note: This question is incomplete because the image is missing. However I can answer it based on my general prior knowledge.

Learn more about triangles in: brainly.com/question/2773823

#SPJ1

5 0
2 years ago
Which fraction is NOT equivalent to
kenny6666 [7]

the answer is D because 6 and 10 aren't multiples of 8 and 12

5 0
3 years ago
The length of a rectangle is l and the width of the rectangle is w. Which statement explains why the perimeter of the rectangle
USPshnik [31]

D is the answer

For this

5 0
4 years ago
Can someone help me?
Lapatulllka [165]

Answer:

idk

Step-by-step explanation:

we are nt on that yet

5 0
4 years ago
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