Explicación paso a paso:
a)
[tex]area = \frac{2 \times 10cm \times 5cm}{2} = 50 {cm}^{2} [/tex]
[tex]perimetro = (2 \times 10 + 2 \times 5)cm = 30cm[/tex]
b)
[tex]area = ( \frac{6 \times 2}{2} + 6 \times 8) {cm}^{2} = 54 {cm}^{2} [/tex]
[tex]perimetro = ( \sqrt{ {6}^{2} + {2}^{2} } + 2 +2 \times 8 + 6)cm =(2 \sqrt{10} + 24)cm[/tex]
c)
[tex]area = (10 \times \frac{5 \times 3}{2} ) {cm}^{2} = 75 {cm}^{2} [/tex]
[tex]perimetro = (6 \times 5)cm = 30cm[/tex]
