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
Lelu [443]
4 years ago
15

How do you find the size of angle B?

Mathematics
1 answer:
Vitek1552 [10]4 years ago
6 0

the sum of the interior angles is 180° (triangles)

it's isosceles, 2 equal sides and 2 equal angles.

you take away the given angle from 360° and you will find the sum of the 2 equal sides, you divide by 2 and you have the angle b (equal to angle C).


(180 - 72) : 2  =

108 : 2 = 54° (your answer)

-----------------------

72 + 54 + 54 = 180°

The answer is good.

You might be interested in
Use Quadratic Formula to solve Real Life Quadratic Equation Problem.
skad [1K]

Answer:

Step-by-step explanation:

Use Quadratic Formula to solve Real Life Quadratic Equation Problem.

Kaylani is going to make a blanket by sewing a 4-foot long piece of ribbon along the diagonal of a piece of rectangular fabric. She wants the length of the blanket to be 18 inches longer than the width. What is the approximate perimeter of the blanket? Round to the nearest inch.

8 0
3 years ago
A country's population in 1993 was 116 million.
labwork [276]

Answer:

124 million in 2007

Step-by-step explanation:

This is a proportion match question, we consider 121-116 to represent a 9 year change = 5 rate of change per 9 years. We need to find one year so we divide 5/9=0.55 per year growth. =2002- 2007= 0.55 million x 5 = 2.8million growth add 121 million = 121 =123.8 in 2007 = 124 million to nearest m.

7 0
3 years ago
Determine the average speed of the monorail, in miles per hour, over each segment of the route. Round each speed to the nearest
Kryger [21]

Answer:

show everything

Step-by-step explanation:

copy and paste all of all of the problem

7 0
3 years ago
What is the sqrt{-38} in the simplest form
mixas84 [53]

Answer: 6.164 √38

Step-by-step explanation: hope this is what your looking for :)

3 0
3 years ago
Read 2 more answers
A rectangle is formed by 2 congruent right triangles. The area of each triangle is 6 in^2. If each side of the rectangle is a wh
abruzzese [7]

How sad.  You were going along so nicely there, with a fascinating problem
that would be fun to work on, and then you suddenly fell off over the edge.

"Which of these ..." always means "Here's a list of choices.  Pick out the
correct answer from the list."  So we know that there was a list of choices
right there, where you copied the question from.  But when you finished
copying the question and reached the list of choices, you stopped there,
never copied the list, and went away to do something else instead.

Without that list, there's no way for us to answer the question "Which of these...".


7 0
3 years ago
Other questions:
  • What's the solution set of –5 < 2x – 1 < 3?
    8·1 answer
  • 3.5d + 6.25 = 1 + 5.25d<br><br> The solution is d =
    6·1 answer
  • The price Renu pays to visit the vet's clinic is calculated according to the formula 30 + 60n. Here n is the number of times she
    11·1 answer
  • Find measure of angle labeled X
    9·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST, WILL GIVE THANKS, AND 5 STAR RATING ONLY TO THE CORRECT ANSWERER!!!! 40 POINTS
    5·1 answer
  • What is the difference between a rate and a unit rate? Show an example
    12·1 answer
  • 1.This figure shows circle O with chords AC and BD . ​ mAB=34∘ mCD=34∘ AP=6 m ​ PC=8 m What is BD ? Enter your answer in
    6·1 answer
  • Buy a bike that costs $189 I have saved $99 so far I plan to save $10 each week how many weeks will I have enough money to buy t
    11·2 answers
  • Ik most of us have finals coming up. Some of us are stressing alot as well,
    7·1 answer
  • Plz help I need help plz
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!