A 12-foot ladder is placed 4 feet from the wall. Approximately how far up the wall will the ladder reach?

A. ≈11

B. ≈16

C. ≈8

Question

Mathematics

Thalia Fischer

4 September, 05:07

A 12-foot ladder is placed 4 feet from the wall. Approximately how far up the wall will the ladder reach?

A. ≈11

B. ≈16

C. ≈8

+5

Answers (2)

Know the Answer?

Rhianna King · Answer 1

Use Pythagorean theorem to get your data ... hypotenuse is 12 (c) and we know the base of 4 (a) ... so we find b.

c^2 - a^2 = b^2

12^2 - 4^2 = b^2

128 = b^2 (get the sq root of each side)

11.3 = b

answer is A

Collier · Answer 2

12^2 = 144

we have to use pythagorean's theorem for this.

We may say that the base is 4 feet and hypotenuse is 12

144-16 = 128

take the square root of 128 and you'll end up with 11.31which rounds up to 11 which is A

A 12-foot ladder is placed 4 feet from the wall. Approximately how far up the wall will the ladder reach?A. ≈11B. ≈16C. ≈8

A 12-foot ladder is placed 4 feet from the wall. Approximately how far up the wall will the ladder reach?

A. ≈11

B. ≈16

C. ≈8