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
Dafna1 [17]
3 years ago
11

What is the measure of angle A to the nearest degree?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0
There are several ways to find the angle at A.

One is to realize the bisector of angle A will make a right angle with BC, creating two congruent triangles with short leg 2 and hypotenuse 7. Then the sine of the half-angle at A will be 2/7, so
  A = 2*arcsin(2/7)
  A ≈ 2*16.6015° = 33.203°

The measure of the angle at A to the nearest degree is
  33°

_____
Another way to find the angle is to use the Law of Cosines. After solving for the angle (A) in terms of sides a, b, c, you find
  A = arccos((b²+c²-a²)/(2bc)) = arccos(7²+7²-4²)/(2*7*7))
  A = arccos(82/98) ≈ 33°

And you can always use a triangle solver application.

You might be interested in
A case of water costs $3.84 and contains 24 bottles of water. Determine the cost of each bottle of water.
Darya [45]

Answer:

0.16

Step-by-step explanation:

3.84/24=0.16

Divide the total price by the amount of waterbottles in the case to find each individual one.

Hope this helps!

3 0
3 years ago
If Oscar the ostrich travels 78 miles in 2 hours on land, how fast does he travel?
Aleks04 [339]
Speed=distance traveled/time of the travel=78/2=39 mph
3 0
3 years ago
Which triangle is similar to JKL?
Nadusha1986 [10]
So is this just a free answer or?
5 0
3 years ago
FIRST TO ANSWER GET BRAINLEST.
Lostsunrise [7]

Answer:

I believe the answer is B sorry if I'm wrong

3 0
2 years ago
One equation in a system is y=3x+7. Which equation gives the system no solution
atroni [7]

Answer:

A

Step-by-step explanation:

Because I know how to do it

7 0
2 years ago
Read 2 more answers
Other questions:
  • Describe this translation.
    6·1 answer
  • 44/18 into a mixed number
    12·2 answers
  • Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x + 4y = 14 x = 3
    5·1 answer
  • Here are Xavier's bowling scores:
    11·1 answer
  • Please help me on the following if possible :)
    9·1 answer
  • Subtract the rational expressions.
    9·1 answer
  • Can someone PLEASE HELP!!!!!!!!!!!
    14·1 answer
  • YOU BE THE TEACHER Your friend solves the equation shown. Is your friend correct? -4(2n-3) = 12 - On -Bn+ 12 = 12-8n -On=-On O=0
    10·2 answers
  • Find slope of line (I need to see if you get the same answer as me to know if it’s right)
    8·2 answers
  • If three times a certain number is increased by 4 the result is 28
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!