OK. Take it slow and easy, one step at a time.
-- Draw a line from the center of the circle to the left end of the
horizontal chord.
(That point doesn't have an identification letter, but it's the other
end of the '10' from point 'A'.)
-- Since that line is also a radius of the circle, its length is 14.5 .
-- When you drew the line, you made a right triangle inside the circle.
The line you drew is the hypotenuse of the right triangle.
-- You know the length of the hypotenuse (14.5), and you know
the length of one leg (10). So you can calculate the length of the
other leg ... from the center to point 'A'. That leg is √(14.5² - 10²)
-- Now you know the distance from the center of the circle to point 'A'.
The length of AB is (the radius) minus (the leg that you just found).
Seem reasonable ?
I got 4 for AB. But I was working fast and sloppy. You need to check it.
Answer:
600
Step-by-step explanation:
2000/10=200. 200x3=600
Times 339 by . 2 and you get
Steps in multiplying fractions. Remember: finding common denominator is not necessary in multiplying fractions.
Common denominators are only needed in adding and subtracting fractions.
14/15 * 5/2
Step 1. Multiply the numerators.
14 * 5 = 70
Step 2. Multiply the denominators
15 * 2 = 30
Step 3. Simplify the fraction.
70/30 = 2 10/30 = 2 1/3
*the fraction 10/30 can still be simplified by dividing both numbers by 10. Hence, 1/3.
Steps in Dividing fractions.
24/60 ÷ 8/15
Step 1. Get the reciprocal of the 2nd fraction. Reciprocal means the reverse of the fraction. Simply swap the places of the numbers.
Reciprocal of 8/15 is 15/8.
Step 2. Multiply the 1st fraction to the reciprocal of the 2nd fraction. Follow steps in multiplying fractions.
24/60 * 15/8 = (24*15) / (60*8) = 360/480
Step 3. Simplify the fraction.
360/480 = 9 / 12 = 3/4
360 ÷ 40 = 9 ; 9 ÷ 3 = 3
480 ÷ 40 = 12 ; 12 ÷ 3 = 4
