Resposta:

48,12cm

Explicação passo a passo:

PΔ = a + b + c

a = 1,96cm

b = 23,04cm

c = √[(1,96)² + (23,04)²]

c = √[3,8416 + 530,8416]

c = √534,6832

c ≅ 23,12cm

PΔ = a + b + c

PΔ = 1,96 + 23,04 + 23,12

PΔ = 25 + 23,12

PΔ = 48,12cm