Answer:
If AB is a tangent to the circle, the triangle ABO is right angled, as the angle where a tangent meets the circumference is always 90 degrees.
We also know that Pythogoras' theorem only holds for right angled triangles.
The hypotenuse is 12 + 8 as 12 is the radius so is 20.
16^2+12^2 = 256 + 144 = 400 = 20^2 so AB must be tangent.
Answer:
11.3353
Step-by-step explanation:
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Answer:
a= 8x+6x+48x+1
Step-by-step explanation:
Area of large rectangle is represented by a
a= 8x+6x+48x+1 - This is expanded form
Can be simplified to a= 62x+1
Answer:
-10
Step-by-step explanation:
7 + 7(-4) - (2(-4)) + 3
7 - 28 - (-8)+3
7 - 28 +8 +3
= -10
8÷(3-(8÷3))
8 divided by 3 minus 8 divided by 3.
Make sure to include the brackets otherwise the answer will not work.