Answer:
x ≈ 2879.4 m
Step-by-step explanation:
Measure of ∠DAC = 10°
Measure of ∠DAB = 90°
Measure of ∠BAC = 90° - 10° = 80°
By applying cosine rule in ΔABC,
cos(80°) = 
= 
0.17365 = 
x = 
x = 2879.36
x ≈ 2879.4 m
Answer:
- the way its set up its kind of confusing
Step-by-step explanation:
Answer:
What is it??
Step-by-step explanation:
wat's the question??
$600 / 100 = $6
$6 x 40 = $240
Answer: $240
Hope it helped :)
In order to be a triangle, the sum of two sides must be greater than the third side. (Just think about it for a bit and you will see why this has to be true). For example, could you have a triangle with side 3 inches, 4inches, and then a whopping 100 inches? No, because the other two sides are too short to fully connect a triangle!
So once you understand this, we can find the possible length <span>of </span>the missing side.
Let x be the length of the missing side in centimeters. The other two sides are 18cm and 40cm.
So one possible combination:
The sum of our two known lengths must be larger than the unknown length:
18 + 40 > x
58 > x
Therefore one constraint is that our third side has to be less than 58 centimeters.
Another combination:
18 + x > 40
x > 22
So another constraint is that our third side must be larger than 22 cm.
The last combination is pointless:
40 + x > 18
Since 40 is already larger than 18, then "40 + x" is obviously larger than 18.
So therefore our x has to be in this range:
22 < x < 58
In other words, our third side has to be larger than 22 cm, but less than 58 cm.
