You need to use the Law of Cosines:
AC² = AB² + BC² - 2·AB·BC·cos(b)
Therefore, you get:
AC = √(90² + 80² - 2·90·80·cos(50)
=√5243.86
= 72.4 in
Now you can sum up all the sides in order to find the perimeter:
AB + BC + AC = 90 + 80 + 72.4 = 242.4 in
The correct answer is A) 242.4 in
X=25 and u would add 5x to both sides 6x=25+5x then u would multiply both sides by 0.25 making it 1.5x=6.25+1.25x
Answer:
40ft
Step-by-step explanation:
Please kindly see the attached file for more explanation
Answer:
SA=2lw+2lh+2hw, to find the surface area
Step-by-step explanation:
Answer is <span>A.
associative property
...................regrouped</span>
