Answer:
Approximately 11 feet.
Step-by-step explanation:
Let the length of the third side of the triangle be represented by x. Applying Cosine rule, we have:
= 
+ 
- 2abCos C
⇒ 
= 
+ 
- 2(8 x 12) Cos
= 64 + 144 - 192 x 0.42262
= 208 - 81.143
= 126.857
x = 
= 11.2631
x ≅ 11
The length of the third side of the triangle is approximately 11 feet.
Answer:
11
Step-by-step explanation:
42 is also the degree for x so 42+42=84
there are 360 total degrees in a parallelogram
360-84=276
276 is divided by 2 as y and w are the same degrees
138 + 5 to find x and that is 143
143/13 is 11
6 rounds up (1 time). 8 rounds up (2 times). 5 rounds up(3 times). 2 does not round up. 7 rounds up (4 times)
you can round up 4 times.
8 is the answer because you count up from the lower number
