Answer:
C) 253. 3 cm²
Step-by-step explanation:
1. Sector area formula can be in degrees or radians. I will use degrees because we are given 240 degrees as a unit.
2. SA= 
times 
where x is the degrees of the sector
3. 240/360 times 3.14(11)²
4. 0.66666667 times 379.94
5. approximately 253. 3 cm²
Use the Pythagorean theorem to find X
A² + B² = C²
X² + 4² = 5²
X² = 5² - 4²
X² = 25 - 16
X² = 9
.: X = 3
We don't know what WCLM means or have any contacts clues
Answer:
Yes they are proportional!
The factors of 28 that we can use in these fractions are 4 and 7. To find if these are proportional, just simplify 8/28. To do so divide the numerator (top) and the denominator (bottom) both by 4...
8/28 / 4 = 4/7
Now that you have both with the same denominator, you can evaluate if 3/7 and 4/7 are proportional. In this case they are.
Hope this helps! :)
