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
Temka [501]
3 years ago
7

In ΔABC, if m∠A = 43° and m∠C = 66°, then find m∠B.

Mathematics
1 answer:
weqwewe [10]3 years ago
6 0
The measures of the angles in a triangle add up to 180°.
m \angle A + m \angle B + m \angle C = 180^\circ \\
m \angle A=43^\circ, \ m \angle C = 66^\circ \\ \downarrow \\
43^\circ+ m \angle B + 66^\circ = 180^\circ \\
m \angle B + 109^\circ = 180^\circ \\
m \angle B =180^\circ - 109^\circ \\
\boxed{m \angle B=71^\circ}
You might be interested in
How many terms are in this expression 9a + 6b + 3c + 1
satela [25.4K]

Answer:

3

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve for given replacement set for 21- 5x -4 = x +4 ( 0, 2, 4 )
FrozenT [24]
\left[x \right] = \left[ \frac{13}{6}\right][x]=[​6​​13​​]
totally answer
3 0
3 years ago
If f (x) = x and g(x) = 3x + 1 are two real functions. Find (f + g) (x)
romanna [79]

Answer:

4x + 1

Step-by-step explanation:

note that (f + g)(x) = f(x) + g(x) , thus

f(x) + g(x)

= x + 3x + 1 ← collect like terms

= 4x + 1

4 0
3 years ago
How many units long is AC?
Nonamiya [84]
The answer is B
6 units
3 0
3 years ago
Find the surface area of the following pyramid using its net. Please answer correctly the 4 questions and I'll give you brainlie
Leto [7]

Answer:

The surface is 7.4344433322 acording to the exact dynamiter and angle of the pyrmaids

Step-by-step explanation

Im smart like that :)

5 0
3 years ago
Read 2 more answers
Other questions:
  • you have to move a 50 gallon drum filled with water. calculate the weight of this drum prior to moving it
    15·1 answer
  • A researcher collects data on the relationship between the amount of daily exercise an individual gets and the percent body fat
    8·1 answer
  • Match the system of equations with their solution
    14·1 answer
  • Why is 0.5 rational?
    10·1 answer
  • Read and write the number in two other forms five hundred eight thousand
    5·1 answer
  • 1) 2a + a + 3b
    15·1 answer
  • PLEASE HELP ME. SOS EMERGENCY I REALLY NEED HELP PLEASE CIE shares are currently selling at $1.20 each, and OCR shares can be bo
    7·1 answer
  • Solve for x please I don't understand
    8·2 answers
  • Estimate the sum or difference 6/10+7/12
    15·2 answers
  • Which expression is equivalent to 4(3n -5)?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!