Find the height of a cylinder whose diameter is 42 cm and the area of its curved
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Answer:
<h3> ∠ABC≅∠DEF </h3><h3> ∠BCA≅∠EFD </h3><h3> ∠CAB≅∠FDE </h3><h3> AB≅DE, BC≅EF, CA≅FD</h3>Step-by-step explanation:
To rotate point A 180° about the origin (point O) we draw a line from that point (A) throu the origin, measure the distance from the point A to the origin, and then measure the same distance on the other side of the origin to get rotated point. Mark it. The angle at the rotated point will be congruent to ∠A
The same goes for points B and C
Angles at pair of given and rotated point are congruent.
Sides of triangle are congruent if they lay between two congruent angles.
The only equation from the options given which shows exactly one solution is x = 2
Evaluating the options given :
- x = x ; here, the variable on the right hand side is equal to that on the left hand side, this means there is no value for the variable x.
- x = 2 ; here, the value of varibale x is 2 ; with the equal to sign, it means 2 is the only value which makes x true, hence the only solution.
- 1 = 1 ; Here, there is no variable to which the value of 1 is attached, hence, no solution.
- 0 = 1 ; 0 is not equal to 1.
Therefore, only the equation x =2 gives exactly one solution for the value of x
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