Answer:
39.275
Step-by-step explanation:
the diameter of the semicircle is 10
A semicircle is half a circle, and a quarter circle is 1/4 of a circle.
Perimeter of a semicircle is ¶d/2
= 3.142 x 10/2 = 3.142 x 5 = 15.71
For 2 semicircles that will be 15.71 x 2 = 31.42
For the quarter circle, perimeter is ¶d/4 = 3.142 x 10/4 = 3.142 x 2.5 = 7.855
Total perimeter = 31.42 + 7.855 = 39.275
Its R
you can just see in figure as square root of 50 is approximately around 7.07
Answer:
17
Step-by-step explanation:
it's sufficient to set x=7
g(7)=2×7+3=14+3=17
Answer:
couted by 10
Step-by-step explanation:
V = pi × r² × (h / 3)
A = pi × r²
90 = pi × r²
Substitute the volume:
810 = 90 × (h / 3)
810 = 30h
h= 810 ÷ 30
h = 27 meters
