The arc length (s) is given in terms of the radius (r) and central angle (θ) by
s = r*θ . . . . . . . where θ is in radians
For your arc, the length is
s = (15 ft)*(π/4) ≈ 11.78 ft
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45° can be converted to radians by multiplying by π/180°.
45° * (π/180°) = π*(45/180) = π/4 . . . . radians
Answer:
780
Step-by-step explanation:
779.7 rounds up to 780 because the decimal is above .5
You have to cut it have first so there is a top and a bottom rectangle.
For the bottom one it is 40 x 40 x 25 = 40,000
For the top one it is 40 x 35 x 25 = 35,000
Then you add 35,000 and 40,000 to get 75,000 cm cubed
The term rules for the following sequences is that you multiply each number by 3! Hope this helps and please mark brainliest :)