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
Ne4ueva [31]
3 years ago
12

In triangle ABC AB is equals to AB and Angle B equal to 80 find the angle A​

Mathematics
1 answer:
insens350 [35]3 years ago
4 0

Answer:

∠A = 20°

Step-by-step explanation:

Given:

Line AB equal to line AC

So, we can say that;

∠B = ∠C

So

∠B = ∠C = 80°

Using angle sum rule

∠A + ∠B + ∠C = 180°

∠A + 80° + 80° = 180°

∠A = 20°

You might be interested in
if two angles are supplementary and one of the angles measures 43 degrees, what is the measure of the other angle
sweet-ann [11.9K]

Answer:

137 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees

180-43=137

6 0
3 years ago
Read 2 more answers
Please answer and explain for brainlest!!​
satela [25.4K]

Answer:

B. 45

Step-by-step explanation:

To solve for angle A, we need to find the value of x. First, we need to find the interior angles of the triangle. We already know 2 of them, x+57 and 63+x but we need the third one. We can do that by subtracting 96 from 180 which is 84.

So now that we have the three interior angles of the triangle, we can make an equation. We already know that the sum of interior angles of a triangle is 180.

84+(x+57)+(63+x) = 180

Simplifying, we get:

204+2x=180

2x = -24

x=-12

Plugging x = -12 into x+57 gives 45 degrees. So, the answer is B.

6 0
3 years ago
Read 2 more answers
WORTH 25 POINT PLEASE HELP WILL MARK THE BRAINLIST
AleksandrR [38]

Answer:

sure

Step-by-step explanation:

what is the question

4 0
3 years ago
Solve each of the following:
Viefleur [7K]

Step-by-step explanation:

A. 36÷3=12 <em>$</em><em>12</em><em> </em><em>per</em><em> </em><em>ticket</em>

B. 8.25÷3=2.75 $2.75 per ice-cream cone<em> </em>so do 2.75×2=5.50 <em>$5.50 for 2 ice creams</em>

C. 0.99÷3=0.33 $0.33 per banana so do 0.33×5=1.65

<em>$</em><em>1.65</em><em> </em><em>for</em><em> </em><em>5</em><em> </em><em>bananas</em>

<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>HELPS</em>

6 0
3 years ago
:<br> The slope of the line that passes through the points (5,10) and (2,12) is
Effectus [21]

Answer:

m = -2/3; b = 13 1/3

Step-by-step explanation:

ΔX = 2 – 5 = -3

ΔY = 12 – 10 = 2

2/-3 = -2/3

Equation for b:

10 = -\frac{2}{3} (5)+b\\10 = -3 \frac{1}{3} +b\\13 \frac{1}{3} =b

5 0
4 years ago
Read 2 more answers
Other questions:
  • Explain how you would solve 16/c=8
    5·2 answers
  • 5.3 times 10.4 is??? (Show work)
    5·2 answers
  • In order to estimate the height of all students at your university, let's assume you have measured the height of all psychology
    15·1 answer
  • Convert:<br> 38 inches = feet and inches all together
    10·2 answers
  • Hope u can do it HELP MATH
    7·2 answers
  • 15% of $17,500 <br><br> 9.5% of $15,000<br><br> 11% of $18,050 <br><br> 10.5% of $21,000
    6·1 answer
  • 4x−2y=14 y=12x−1 solve by substitution
    9·1 answer
  • If the temperature outside was 63°F at 5:00 p.m., but it fell 21 degrees by 10:00 p.m., what is the temperature at 10:00 p.m.?
    11·2 answers
  • How many 5 cents can u get from $1.25?​
    15·2 answers
  • The ratio of boys to girls in a classroom is 4 : 5. What is the meaning of this ratio? ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!