Answer:
17.2°
Explanations
To find angle A, use the cosine rule.
a^2 = b^2 + c^2 - 2 × a × c cos A
4^2 = 7^2 + 10^2 - 2 × 7 × 10 cos A
16 = 49+ 100 - 140 × cosA
16 = 149 - 140cosA
16- 149 = - 140cosA
-133 = - 140cosA
cosA = 133/140
cosA = 0.95
A = 17.2°
Answer:
c = 2
d = 28
Step-by-step explanation:
Please see the attached file for explanation
I don't know man my teacher is gonna have to deal with me leaving this blank lol.
Answer:
2000 Pounds
Step-by-step explanation:
There are 2000 pounds in a US ton.
There are 2240 pounds in an Imperial ton.
There are 2204.62 pounds in a metric ton.
This result is actually true for any exterior angle. The exterior angle of a triangle is equal to the sum of the two remote angles, and above is a short proof of it.
