Answer:
Step-by-step explanation:
Area is + 111.6 square meters
Formula : A/ 3.14 / 2
111.6 / 3.14 = 35.54
35.54 is the radius so multiply by 2 to get diameter .
35.54 / 2 = 17.77
Hope that’s right:)
Answer:
Step-by-step explanation:
15. [4] insufficient information. only given SA
16. There are 3 right triangles, 3 Pythagorean theorem equations
x²+b²= 16²
12²+a² = x²
a²+4² = b²
combine equations using substitution to get in terms of only x
substitute b² for (a² +x²) in first equation
x²+a²+4²=16²
substitute a² for (x² - 12²)
x²+x²-12²+4² = 16²
solve for x
2x² - 144 + 16 = 256
2x² = 256 + 144 - 16
2x² = 384
x² = 384/2
x² = 192
x = 13.85
rounded to nearest tenth, x = 13.9
15x + 7y + 45x + 22y
= 60x + 29y
answer
A. 60x + 29y
If you draw more of those triangles, there will be 6 that can fit, so find area of 1 triangle and multiply it by 6. Write that number down and then do Pi r squared to find the area of the circle, then do circle area minus triangles area when you get that, divide it by 6. That is the area of the white region so then do Pi R squared again and then subtract the white area from that
