Question

PFVRR ME AJUDEM VALE NOTA
sem brincadeirs pfvrr

Answer 1

Resposta:

42 cm; 196$\pi$ cm² ; 14 cm; (1, 1) ; D, r, c

Explicação passo-a-passo:

a) C = $2\pi r$ => 2 (3) 7 = 42 cm

b) r = 14cm => A = $\pi r^{2}$ => $A = \pi .14^2 = 196\pi$ cm²

c) r =7cm => D = 2r = D =14cm

d) (1,1)

e) Diametro, raio, corda