Answer: Choice A
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Explanation:
The pythagorean theorem is
The value of c is always the longest side, aka hypotenuse.
The order of 'a' and b doesn't matter.
So a = 14, b = 48, c = 50
We have
We also have
Both sides result in 2500 which proves that is a true statement. Therefore, we do have a right triangle.
We use the equation x=810/5.4, which is converted to 8100/54. The answer is that the model was made on a 1in=150ft scale
Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos30° = , then
cos30° = = = ( cross- multiply )
2x = 20 ( divide both sides by 2 )
x = 10 → B
Pythagoras says that x²+12²=13², so x=√(169-144)=√25=5