Answer:
0
Step-by-step explanation:
All of the lengths of both triangles are exactly the same, therefore no change has occurred and the scale factor is 0
What angle are you talking about
Answer:
7
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the other leg, then
x² + 4² = (
)²
x² + 16 = 65 ( subtract 16 from both sides )
x² = 49 ( take the square root of both sides )
x =
= 7
That is the other leg is 7 units
Area = (Pi)(Radius)^(2)
so
A = π(4.3)<span>²
A = </span>π(18.49)
A = 58.088 in/sq
(There should be a Pi button on your calculator)