23.4k views
4 votes
Hans wanted to find the length of the hypotenuse of the triangle. Which statement correctly identifies his error?

A right triangle has side lengths 40 centimeters and 9 centimeters. The hypotenuse is labeled c.

9 squared + 40 squared = c squared. 81 + 80 = c squared. 161 = c squared. StartRoot 161 EndRoot centimeters = c.
He did not square 40, he just multiplied by 2.
He did not finish the problem. He should have divided 161 by 2 to find the square root.
He should have added 9 + 9 to find the value of 9 squared.
He should have subtracted the two squares to get 40 squared minus 9 squared = c squared because numbers get too large if both legs are squared and then added together.

User Mayqiyue
by
7.6k points

2 Answers

3 votes

Answer:

the answer is A

Explanation:

edg

User MorganTN
by
8.0k points
3 votes

Answer:

He did not square 40, he just multiplied by 2

Answer 41 centimeters.

Explanation:

C²=40²+9²

C²=1600+81

C²=1681

√c²=√1681

C=41cm

User Amol Brid
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories