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
bagirrra123 [75]
3 years ago
12

If the measure of angle A is 40* and the length of side b is 15 inches, which can be the length of side a if it is possible to f

orm two triangles
Mathematics
1 answer:
Sedbober [7]3 years ago
8 0
Because ∠A=40°, therefore ∠B + ∠C = 180.

To create two triangles, we could make a = 10 in.

From the Law of Sines,
a/sinA = b/sinB.
 
Therefore
10/sin(40) = 15/sin(B)
sin(B) = (15/10)*sin(40) = 0.9642
∠B = arcsin(0.9642) = 74.6°

Because the sine function is positive in quadrants 1 and 2, we could also have ∠B = 180 - 74.6 = 105.4°.
This means that
a/sin(105.4) = 15/sin(40°)
a = [sin(105.4)/sin(40)]*15 = 22.5 in

Answer:
We could have a = 10 in, or a = 22.5 in
You might be interested in
My common core lesson 7 3.1
Verizon [17]
What is the question?
5 0
3 years ago
What are two ways friction can be increased
mihalych1998 [28]
By making the surface rougher and to increase the force pushing the surfaces together.
7 0
3 years ago
Read 2 more answers
Dave uses the functionP(d) = 20d - 20 to calculate the net profit of his dog walking business. Where P(d) is the net profit in d
Lelechka [254]

When Dave walks three dogs he will earn a net profit of 40 dollars.

3 0
3 years ago
What is 10th term in 3,8,13,18?
skad [1K]
3+5=8+5=13 so if you keep doing this you  will get 48 which is the answer
5 0
3 years ago
Can u PLEASE help with problem 3. and 4. (ONLY IF YOU KNOW)
Rina8888 [55]
It would help if we were able to see the previous exercises to help you with these.
3 0
3 years ago
Other questions:
  • Triangle QRS, with vertices Q(6, -2), R(4, -7), S(2, -5), is drawn inside a rectangle, . What is the area, in square units, of t
    5·1 answer
  • Lilli jogs 1/2 mile in 1/10 hour. What is Her rate per hour?
    7·2 answers
  • The scatter plot shows the number of football and baseball cards collected by a sample of third grade children. A coordinate pla
    12·2 answers
  • If you travel 40 miles east and then turn around and drive 12 miles west, the displacement is?
    9·2 answers
  • Write an expression that represents the sum of 7 and x. Please help :)<br><br><br>Thanks!
    5·1 answer
  • What is the slope for y=-5x-6
    11·1 answer
  • Can someone please answer my question for real please. I’ll give extra points
    10·1 answer
  • Please help with 1,2, and 3
    5·1 answer
  • The average basketball has a diameter of 9.5 inches. What is the volume of an average basketball?
    7·1 answer
  • To find the average of a set of numbers, add up all the items and divide by.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!