Respuestas
SOLUCION :
Área =?
El valor de las áreas de las figuras proporcionadas se calculan de la siguiente manera :
a) A1 = L² = 22² = 484 cm²
A2 = b*h = 33*55 = 1815 cm²
At = A1 + A2 =
At = 22² + ( 33*55) = 2299 cm²
b) A1 = b*h = 16*12 = 192 m²
A2= b*h/2 = 16*4/2 = 32 m²
A3= L² = 8²= 64 m²
A4 = b*h/2 = 8*4/2 = 16 m²
At = A1+A2+A3+A4 = 192+32+64+16
At = ( 16*12) + ( 16*4/2) +8²+ ( 8*4/2 ) = 304 dm²
c) A1= (B+b)*h/2 = ( 15+9)*6/2 = 72 m²
A2= b*h = 9*3 = 27 m²
A3= b*h/2 = 9*6/2 = 27m²
At= 72+27+27 = 126 m²
At = ( 15+9 ) *6 /2 + ( 9*3) + ( 9*6/2 ) = 126 m²
d) A1= b*h = 24*30 = 720 m²
A2= L²= 12²= 144 m²
A3 = L²= 18²= 324 m²
A4 = b*h = 6*12 = 72 m²
At = 720 +144+324+72= 828 m²
At = ( 24*30) - 12²+ 18²- 6*12 = 828 m²
e) A1= D*d/2 = 21*33/2 = 346.5 m²
A2= b*h = 12*18 = 216 m²
A3 = b*h/2 = 18*6/2 = 54 m²
A4 = b*h/2 = 6*18/2 = 54 m²
At = 346.5 216+54+54 = 670.5 m²
At =( 21 *33 /2 )+ ( 12*18) + ( 18*6/2) +( 6*18/2 ) = 670.5 m²
f) A1 = b*h = 12*8 = 96 m²
A2= (B+b)*h/2 = ( 8+4)*8/2 = 48 m²
At = 96 +48 = 144 m²
At = ( 12*8 ) + ( 8+4)*8/2 = 144 m²
Respuesta:a 2299 b 304 dm²
Explicación paso a paso: