Am i right if not pls help will mark brainliest!!!
2 answers:
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Answer:
mArc A B = 120° (C)
Step-by-step explanation:
Question:
In circle O, AC and BD are diameters.
Circle O is shown. Line segments B D and A C are diameters. A radius is drawn to cut angle D O C into 2 equal angle measures of x. Angles A O D and B O C also have angle measure x.
What is mArc A B?
a)72°
b) 108°
c) 120°
d) 144°
Solution:
Find attached the diagram of the question.
Let P be the radius drawn to cut angle D O C into 2 equal angle measures of x
From the diagram,
m Arc AOC = 180° (sum of angle in a semicircle)
∠AOD + ∠DOP + ∠COP = 180° (sum of angles on a straight line)
x° +x° + x° =180°
3x = 180
x = 180/3
x = 60°
m Arc DOB = 180° (sum of angle in a semicircle)
∠AOB + ∠AOD = 180° (sum of angles on a straight line)
∠AOB + x° = 180
∠AOB + 60° = 180°
∠AOB = 180°-60°
∠AOB = 120°
mArc A B = 120°
To find out the answer of the two multiplied products with the help of partial products we separate into unit based numbers so as to, for easier calculation and simplification with units of zeroes. So, in this case we are given the product of 4 times of 652.
Here we need to expand this product of higher number to zeroes and take aside the added numbers to come back to the original multiple of a product. That is:
We just separated and expanded the product to be multiplied by removing other units following it. Same goes for other units at Hundredth, tenth and unitary position.
Therefore,
For tenth term.
The terms after splitting and expanding the product before multiplication is:
Multiply the product elements in individual manner and add the elements forged by individual multiplication to get the required solution.
Hope it helps.
Here we need to expand this product of higher number to zeroes and take aside the added numbers to come back to the original multiple of a product. That is:
We just separated and expanded the product to be multiplied by removing other units following it. Same goes for other units at Hundredth, tenth and unitary position.
Therefore,
For tenth term.
The terms after splitting and expanding the product before multiplication is:
Multiply the product elements in individual manner and add the elements forged by individual multiplication to get the required solution.
Hope it helps.