Question

Ayuden porfas ;) doy puntos

Answer 1

Explicación paso a paso:

Círculo:

P=2πr

P=2π(4)

P=25.132741228718cm

Rectangulo:

A=bh

A=

$6 \times \frac{7}{9} = \frac{6}{1} \times \frac{7}{9} = \frac{42}{9} = \frac{14}{3}$

A=14/3cm²

A=

$9 \times \frac{2}{5} = \frac{9}{1} \times \frac{2}{5} = \frac{18}{5} = 3 \frac{3}{5}$

A=3 3/5cm²

Triángulo:

A=bh/2

A=

$( \frac{3}{4} \times \frac{3}{4} ) \div 2 = \frac{9}{16} \div 2 = \frac{9}{16} \div \frac{2}{1} = \frac{9}{32}$

A=9/32 cm²

1)

P=l+l+l+l

P=50+20+50+20

P=140cm

2)

A=bh

b=15.2m

h=12.4m

A=(15.2m)(12.4m)

A=188.48m²

188.48m² × $32.00=

$6,031.36