Given a cube with a volume of 18 cm3, what is the volume of a square pyramid that can fit perfectly inside the cube?

3cm

6cm

9cm

12cm

If volume of cube           =  18 cm³
then each side of cube  =   ∛18cm³
                                      ≈  2.6207

Volume of squared pyramid  =  
    since the pyramid fits perfectly in the cube then that means that
    there lengths and height are equal thus l² h =  18 cm³

∴   volume of pyramid  =  18 cm³  ÷  3
                                     =  6 cm

Thus B

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

Just tell koda to adjust the number of shapes himself.