Join the centre O to the chord (let it be MN) & let OH be the perpendicular to the chord
OH bisects MN into 2 equal parts (each one is x/2)
OMH is a right triangle with one side =8, the second leg =x/2 & the hypotenuse = 12 (Radius)
Apply Pythagoras:
12² = 8² +(x/2)² ==>144=64 + x²/4 ==> x²=4(144-64) =320
x²=320==> x=√320 =17.88 ≈17.9
Answer:
10.5
Step-by-step explanation:
27 / 2 = 13.5, 13.5 - 3 = 10.5
Answer:
5 i think
Step-by-step explanation:
Here is your equation:
You have to divide 40 by a number to get 5. Switch it around, and divide 40 by 5. Since 40 divided by x is equal to 5, then 40 divided by 5 is equal to x.
That means x is equal to 8
