1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
horsena [70]
2 years ago
13

I basically just have to find the angles but I also want to understand so if you could explain?

Mathematics
1 answer:
Maru [420]2 years ago
3 0

9514 1404 393

Answer:

  c = 108°

  d = 106°

Step-by-step explanation:

There are 2 basic rules involved here. From them, a number of others can be derived in order to simplify some calculations.

  1. angles forming a linear pair are supplementary (total 180°)
  2. interior angles of a triangle total 180°

The derived relations we can use in this problem are ...

  • vertical angles are congruent
  • an exterior angle of a triangle is equal to the sum of the opposite interior angles

__

<h3>c</h3>

The vertical angle to 78° is one of two remote interior angles with respect to exterior angle c. The other is the one marked 30°. That means ...

  c = 78° +30* = 108°

__

<h3>d</h3>

Angles d and 30° are two of the three angles in the largest triangle. The third is the vertical angle to 44°, so it is 44°. The sum of angles in that triangle is 180°:

  d + 30° +44° = 180°

  d = 180° -74° = 106°

You might be interested in
Which of the following numbers is a multiple of 6?<br> A. 333<br> B. 882<br> C. 424<br> D. 106
gladu [14]
If a number is a multipule of 6 then it is a multiplule of 2 AND 3

if a number is a multiplule of 2 then the last digit should be divisible by 2 (ie, 0,2,4,6,8)

if a number is divisible by 3, then the sum of its digits is divisble by 3
try each

A. 333
last number is not divisible by 2 so not divisible by 6

B. 882
2 is divisible by 2
8+8+2=18
18/3=6
divisible by 6 yes

C. 424
4 is disibielbe by 2
4+2+4=10
10/3=not a whole number so not divisible by 6

D. 106
6 is divisible by 2
1+0+6=7
7/3= not a whole number so not divibislb eby 6


answer is B
6 0
3 years ago
Read 2 more answers
The sum of Sasha’s and Natalie’s ages is 31. Twice Natalie’s age is 11 years more than Sasha’s age. Find each of their ages
ZanzabumX [31]

Answer:

Natalie's age is 14

Sasha's age is 17

Step-by-step explanation:

Let

Sasha's age be "s", and

Natalie's age be "n"

<u>Sum of Sasha and Natalie is 31:</u>

s + n = 31

<u>Twice Natalie is 11 more than Sasha:</u>

2n = s + 11

We ca solve this equation for s first:

s = 2n - 11

We put this into first equation and solve for n first:

s + n = 31

2n - 11 + n = 31

3n = 31 + 11

3n = 42

n = 42/3 = 14

Natalie's age is 14

Also, s = 2n - 11

s = 2(14) - 11

s = 28 - 11

s = 17

Sasha's age is 17

6 0
3 years ago
Por favor ayuda casi no entiendo álgebra me pueden ayudar ¡¡¡
Fynjy0 [20]
That’s the answer for that question

7 0
3 years ago
Please help me out please
Fantom [35]

Answer:

the area of the hexagon is approx. 187.1 in²

Step-by-step explanation:

Picture this regular polygon as being a hexagon made up of six equilateral triangles of side 12 in.  We find the area of one such triangle and then multiply that by 6 to obtain the total area of the hexagon.

One such equilateral triangle has three sides all of length 12 in, and all the interior angles are 60°.  The height of one such triangle is

h = (12 in)sin 60°, or

                  √3

h = (12 in) -------- = 6√3 in

                     2

So, with base 12 in and height 6√3 in, the area of one such equilateral triangle is

A = (1/2)(12 in)(6√3 in) = 36√3 in²

and the total area of the hexagon is 6(36)√3 in², or approx. 187.1 in²

5 0
3 years ago
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is
Zigmanuir [339]
I don’t know skip that question
7 0
2 years ago
Other questions:
  • Solutions for 12 – x2 = 0?
    12·2 answers
  • Factor the following expression, and verify that the factored expression is equivalent to the original: 16x²-8x-3
    15·1 answer
  • Kaylah has 25 bags of candy.Kevin gave her 3 times as many bags of candy she has .How much candy does Kaylah have?Fill out the b
    10·1 answer
  • If five people share three cartons of chow mein, what is each person’s share?
    14·2 answers
  • The Pythagorean Theorem deals with which relationship in a right triangle?
    7·2 answers
  • Activity : Find the factors of the following polynomials.
    5·1 answer
  • Nequality
    14·1 answer
  • 20 points &lt;3
    12·2 answers
  • PLSSS HELPPP MEEEE I NEED IT FAST BEFORE 9am PLSS
    5·2 answers
  • I need help to see if my answers are correct, thank you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!