Respostas

2013-07-22T17:35:08-03:00
Trianagulo retangulo:
A=b.h/2
A=12.5/2
A=30 cm2

Lado maior do triangulo retangulo.
Teorema de Pitagoras
H^2 = A^2 +B^2

H^2 = 5^2 +12^2
H^2 = 169
H=13 cm

Area Lateral
Al = hx(L1 + L2 + L3)

Al= 10 x (13+12+5)
Al= 300 cm2

Area Total
At = Al + 2 Ab

At = 300 + 2.30
At= 360 cm2

Volume
V= Abxh
V= 30x10
V = 300cm3
2 3 2