Question

Ex 11 va rog
Am nevoie urgent pls.

Answer 1

Răspuns:

110 grade

Explicație pas cu pas:

Lungimea cercului:

$l = 2\pi \times r \\ 252\pi = 2\pi \times r \\ r = \frac{252\pi}{2\pi} = 126$

Aria sectorului de cerc

$a = \pi \times r {}^{2} \times \frac{u}{360} \\ 4851\pi = \pi \times 15876 \times \frac{u}{360} \\4851\pi \times 360 = 15876\pi \times u \\ u = \frac{4851 \times 360}{15876} = 110$

Answer 2

110 grde ok

succes :) :) :)