Question

respondan esto porfa​

Answer 1

Explicación paso a paso:

1. P= 2l + 2L = 2.5 + 2.8 = 10 + 16 = 26cm

S = l . L = 5 . 8 = 40cm2

2. a. S = 13 . 6,5 = 84,5m2

b. P = 2 . 13 + 2 . 6,5 = 26 + 13 = 39m

c. S' = 84,5 . 3/5 = 50,7m2

3. a. V = 15 . 40 . 48 = 28800cm3

b. S1 = 15 . 40 = 600cm2

S2 = 15 . 48 = 720 cm2

S3 = 40 . 48 = 1920 cm2

ST= 2.S1 + 2.S2 + 2.S3 = 2 . 600 + 2 . 720 + 2 . 1920

ST = 1200 + 1440 + 2840 = 6480 cm2

4. V = 4 . 2 . 6 = 48 cm3 ( no se ve si es 6 o 8 )