Question

I need the awnser the test ends in 10 minutes

Answer 1

we have that

The volume of a triangular prism is equal to

`V=Bh`

where

B is the area of the triangular face

h is the height of triangular prism

step 1

Find the value of B

B=(1/2)(12)(8)

B=48 cm2

step 2

Find the volume

we have

B=48 cm2

h=3 cm

substitute

V=(48)(3)

V=144 cm3

the volume is 144 cubic centimeters

step 3

Find the mass

Remember that

The density is equal to divide the mass by the volume

so

D=m/V

solve for m

m=D*V

we have

V=144 cm3

D=8.6 g/cm3

substitute

m=(8.6)*(144)

m=1,238.4 grams

the mass is 1,238.4 grams