504
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The factors of 21 are 3x7 The prime factors of 72 are 2x2x2x3x3 So you need to multiply 2x2x2x3x3x7 2x2x2x3x3x7=504 Therefore the LCM of 21 and 72 is 504
504 = 23 x 32 x 7 = 2 x 2 x 2 x 3 x 3 x 7
It is equal to 1.8It is equal to 1.8It is equal to 1.8It is equal to 1.8
Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.
It is the same. So they are equal