Step-by-step explanation:
Note: I used the identity
for the last step.
PS. I love proving trigonometric identities!
Answer:
Step-by-step explanation:
The side length of the square is 18 inches.
If the this square is dilated by a scale factor of , then the length of the resulting square can be calculated by multiplying the scale factor by the side length of the original square.
The side length of the resulting square is
Therefore the resulting square is 6 inches long.
Answer:
132 cm³
Step-by-step explanation:
Two different ways to calculate:
7×6×6= 252 "would-be" total volume.
5×4×6=120 "missing chunk" subtract that.
252-120= 132 cm³ remaining total
OR
7×2×6=84 vertical part
4×2×6=48. horizontal part. add them
84+48= 132 cm³ Total volume