Answer:
-7, 5
Step-by-step explanation:
9514 1404 393
Answer:
- perimeter: 36 +16√5 ft ≈ 71.777 ft
- area: 288 ft²
Step-by-step explanation:
<u>Perimeter</u>
The perimeter is the total length of all the sides. The length of the horizontal sides is 8 ft + 10 ft = 18 ft. The length of the slant sides can be found using the Pythagorean theorem. For side length s, we have ...
s^2 = 8^2 + 16^2
s^2 = 64 +256 = 320
s = √320 = 8√5
Then the perimeter is ...
P = 2(8√5 + 18) = 36 +16√5 ≈ 71.777 . . . feet
__
<u>Area</u>
The area is given by the formula ...
A = bh
where b is the base and h is the height.
A = (18 ft)(16 ft) = 288 ft²
Answer: Choice A) sqrt(17)
The square root of 17 is irrational because we cannot write this number as a fraction of two whole numbers (see note below). With something like choice B, we can do so and that would be 6/99; while choice C simplifies to 7 which is equivalent to 7/1. Choice D isn't fully visible, but it appears to be a fraction of two whole numbers.
Note: the denominator of the fraction cannot be 0.
