Answer:
First Answer C
Second andswer B
Step-by-step explanation:
Left Panel
Givens
In a previous question we have found 2 things.
- 1. That we are working with a right angle triangle
- 2. That two of the sides are both 9. We did not require the third side. Now we do.
If two of the sides are 9 then in this case only we can use the Pythagorean theorem to find the third side. That is because the the base and height meet at right angles.
a^2 + b^2 = c^2
9^2 + 9^2 = c^2
81 + 81 = c^2
c^2 = 162
sqrt(c^2) =sqrt(162)
c = 12.71
Perimeter
The perimeter = 9 + 9 + 12.71 = 30.7
Answer C
- The diagram for the rectangle is shown below. We need to find the length and width.
- Width = abs(-3) + abs(2)
- Width = 3 + 2
- Width = 5
- Length = 8 - 2
- Length = 6
- Area = Width * Length
- Area = 6 * 5
- Area = 30
Answer B
