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
Anuta_ua [19.1K]
3 years ago
9

Given the triangle below, what is the length of the third side, rounded to the nearest whole number?

Mathematics
1 answer:
Leno4ka [110]3 years ago
7 0

Answer:

Step-by-step explanation:

You need the Law of Cosines for this, namely:

x^2=21^2+14^2-2(21)(14)cos58 where x is the missing side.

x^2=441+196-311.5925 and

x^2=325.4075 so

x = 18.0 or just 18

You might be interested in
Find the value of X°<br> a.25°<br> b.85°<br> c.75°<br> d.105°
sdas [7]
The answer is C. 75. Hope this helps.
3 0
3 years ago
Will mark brainlyest
ArbitrLikvidat [17]

Answer: Angles 4 and 5

Step-by-step explanation:

Supplementary angles are angles that add up to 180. The only angle pairs the add up to 180 (you can tell by seeing if two angles are the only two on a straight line) are angles 4 and 5, and angles 3 and 4. Angles 3 and 4 isn’t an option, so it’s 4 and 5.

3 0
2 years ago
Read 2 more answers
Vol=1348.79cm³. What's X? (Height)
ale4655 [162]
V = PI x r^2 x H

1348.79 = 3.14 x 5.5^2 x H

1348.79 = 94.985 x h
h = 1348.79 / 94.985
h = 14.2 cm  ( round answer if needed)


4 0
3 years ago
A polyhedron without parallel faces​
Tanzania [10]

Step-by-step explanation:

A polyhedron include cube ,prism or pyramid while non polyhedron are sphere, cone and cylinder because they have side that aren't polygon. a prism is a polyhedron with two congruent base ,in parallel planes and the lateral sides are rectangle

8 0
2 years ago
If the tree cast a shadow of 40 feet, how tall is the tree? A. 30 feet. B.35 ft. C.40 ft. D.45 ft.
Juliette [100K]

Answer:

A)30feet

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • A computer sells for $610. It is now on sale for 1/5 off the original price. Derek has a coupon for an extra 10% off the sale pr
    5·1 answer
  • What is the size of the triangle angles?
    15·1 answer
  • Factor 10x^2+15x-70
    8·1 answer
  • You take your car in for repairs. The service station charges $200 for parts plus $50 per hour for labor. What is the equation t
    9·1 answer
  • Consider a problem of rotating A digital figure by 30 degrees anti clockwise. Which of the following matrix would do the transfo
    11·1 answer
  • Find the volume of a ball with a radius of 7cm.
    5·1 answer
  • Question 1 of 10
    8·1 answer
  • 8.
    5·1 answer
  • WHAT IS THE SOLUTION?
    9·1 answer
  • Solve for x -<br><img src="https://tex.z-dn.net/?f=%5Cbold%7Bx%20%7B%7D%5E%7B2%7D%20%2B%205x%20%2B%206%20%3D%200%7D%5C%5C%5C%5C"
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!