We are talking about a right triangle so the phytagoras equation can be used:



So the hypothinus is equal to approximately 8.49
Laying linoleum tile on a rectangular floor.
Answer:
Sorry
Step-by-step explanation:
I wish I knew
Answer:
Step-by-step explanation:
You need to set up a proportion.
(21 - 15) / 21 = 4/(x + 4)
6 / 21 = 4/(x + 4)
2/7 = 4/(x + 4)
2(x + 4) = 7*4
2x + 8 = 28
2x + 8-8= 28 - 8
2x = 20
x = 20/2
x = 10