Register
Right triangle: Find AB if BC=3, BD=5, and AD=7
193k views
3 votes
Right triangle: Find AB if BC=3, BD=5, and AD=7

Right triangle: Find AB if BC=3, BD=5, and AD=7-example-1
User Neile
by
7.0k points

2 Answers

4 votes
DC² = 5² - 3² By Pythagoras' Theorem

DC² = 25 -9 =16

DC = √16 = 4

AC = AD + DC = AD + CD = 7 + 4 = 11

AB² = BC² + AC²

AB² = 3² + 11² = 9 + 121 = 130

AB² = 130

AB = √130

AB ≈ 11.402
User ElPastor
by
7.0k points
6 votes
Roughly 11. :') Tell me if you need me to explain how I got that number, I'll gladly elaborate. 
User Ingry
by
7.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.5m questions

10.1m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!