The perimeter of the rectangle is (14,19,28,45) cm. If the rectangle is dilated by a scale factor of 6 to create a new rectangle
, the new dimensions are (15cm by 11cm, 30cm and 9cm , 54cm and 5cm , 54cm and 30cm) . The perimeter of the new rectangle is ( 78,84,118,168 ) cm. When comparing the new perimeter to the original perimeter, the new perimeter is ( 1/6 timws less , 6 times greater , 60 times greater ) .
2 answers:
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Answer:
∠°
Step-by-step explanation:
- The cosine of an angle is equal to the side adjacent to the angle over the hypotenuse, the longest side.
- With this in mind:
- We need to find the hypotenuse of this triangle. This is relativly easy to do with a right triangle; we can just use the Pythagorean Theorem.
- Pythagorean Theorem:
where
,
, and
are the 3 different sides of a right triangle.
- Our hypotenuse is
. Now we can finish solving for ∠
.
∠°