menu
QAmmunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Register
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
In ΔABC, a = 260 inches, b = 480 inches and c=430 inches. Find the measure of ∠C to the nearest 10th of a degree.
asked
May 10, 2022
109k
views
4
votes
In ΔABC, a = 260 inches, b = 480 inches and c=430 inches. Find the measure of ∠C to the nearest 10th of a degree.
Mathematics
college
Justin Meiners
asked
by
Justin Meiners
7.2k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
5
votes
By the cosine rule
430^2 = 260^2 + 480^2 - 2(260)(480)cos(C)
C = arccos([260^2 + 480^2 - 430^2]/2(260)(480)
C = 63.1 degrees (nearest tenth of a degree)
John Pasquet
answered
May 15, 2022
by
John Pasquet
7.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
8.7m
questions
11.3m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search QAmmunity.org