The GCF of 21 and 15 is 3. The are no variables in common so the factor =
3(7x -5y)
R(r+r^2)=(r)(r^2)
R^2+r^3=r^3
R^2=0
R=0
Answer:
6.7
Step-by-step explanation:
Given is a right angled triangle.
So by Pythagoras theorem:
Length of the third side
Answer:
Step-by-step explanation:
Remark
If you find < 3 first, that will give you angle 5 by alternate interior angles. <5 and <7 are equal by vertically opposite angles.
Solution
<3 + <2 = 180o these two angles are on the same straight line.
<3 + 83 = 180o Subtract 83 from both sides
<3 = 180 - 83
<3 = 97
As per the remark <3 = <5 by alternate interior angles.
<5 = 97
<7 = 97 Vertically opposite angles are equal
Note
There are 4 angles that are equal to 83 and 4 angles that are equal to 97
83: angles 2 4 6 and 8
97: angles 1 3 5 and 7
No other values for this diagram are possible and these are always the result.
