A chord is 5cm from the centre of a circle of diameter 26cm. find the lenght of the chord

24cm

Step-by-step explanation:

We know that one side of the triangle is 5 cm, since it is 5cm away from the centre and the hypotenuse of the triangle is the radius, which is 13 cm. Using the pythagorean theorem, we can find the remaining side of the triangle, which is 13^2-5^=other side^2, so the other side = 12cm. To find the entire chord, we just multiply 12 by 2, so the chord is 24cm.

i assume that by 5 you mean 5 gallons.

(20)(0.25) = 15

removing 15 gallons reduces the tank from 20 to 5.

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.