find the lateral area of a cone with a radius of 7ft. and slant height of 13ft, use 3.14 for pi and round the nearest tenth. . . . . A.439.6 ft^2 . . . . . B.324.5 ft^2 . . . . . . C.571.5 ft^2 . . . . . . D.258.7 ft^2(I PICKED THIS ONE)

Hmm. I got 285.7

typo?

oops sorry you were right it is 285.7! thank you @steve

Unit 2 lesson 8. 8th grade quiz

1. D
2. B
3. C
4. A
5. B
6. A
7. B
8. C
9. A

To find the lateral area of a cone, you need to use the formula: Lateral Area = π * radius * slant height.

Given:
Radius (r) = 7 ft
Slant height (l) = 13 ft
π (pi) = 3.14

Using the formula, plug in the values:
Lateral Area = 3.14 * 7 ft * 13 ft
Lateral Area = 3.14 * 91 ft^2
Lateral Area ≈ 286.34 ft^2

Now let's look at the answer choices provided:

A. 439.6 ft^2
B. 324.5 ft^2
C. 571.5 ft^2
D. 258.7 ft^2 (Chosen)

Since the calculated lateral area is approximately 286.34 ft^2, none of the answer choices matches the calculated value. Therefore, D. 258.7 ft^2 is not the correct answer.

If you rounded the calculated lateral area to the nearest tenth, it would be approximately 286.3 ft^2. None of the given answer choices match this rounded value either.

It seems there might be an error in the provided answer choices, as none of them match the calculated or rounded value. Please double-check the options or consult the original source for the correct answer.