Question

ayuda pooooor favooooooor!!!
hallar el perimetro y el area de las siguientes figuras:

Answer 1

triángulo
p= L +L +L
p=6+4+4
p=14

a=
$\frac{b \times h}{2}$
$a = \frac{6 \times 4}{2} = \frac{24}{2} \\ a = 12$
triángulo 2
p=8+8+6
p=22
$a = \frac{6 \times 8}{2} = \frac{48}{2} \\ a = 24$
círculo
1
$p = 2\pi \: \times r \\ p = 2(3.14)(8) = 50.24 \\ p = 50.24$
$a = \pi \times {r}^{2} \\ a =( 3.14) {(8)}^{2} \\ a = (3.14)(64) \\ a = 200.96$
círculo 2
$p = 2\pi \times r \\ p = 2(3.14)(9) \\ p = (6.28)(9) \\ p = 56.52$
$a = \pi \times {r}^{2} \\ a = (3.14)( {9)}^{2} \\ a = (3.14)(81) \\ a = 254.34$
círculo 3
$p = 2\pi \times r \\ p = 2(3.14)(5) \\ p = (6.28)(5) \\ p = 31.4$
$a = \pi \times {r}^{2} \\ a = (3.14) {(5)}^{2} \\ a = (3.14)(25) \\ a = 78.5$

rectángulo 1
p= L+L+L+L
p=9+5+9+5
p=28

a=b×h
a=5×9
a=45

rectangulo2
p=L+L+L+L
p=9+3+9+3
p=24

a=b×h
a=9×3
a=27