Adam is working out the highest common factor of 100 and 112 He has worked it out to be 22. Can you explain what he has done wrong?

130

Step-by-step explanation:

correct me if im wrong

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Adam has found highest common factor as 22 because he didn't multiply 2×2 as 4 but he directly written 2×2 as 22

Step-by-step explanation:

100=10×10

=2×5×2×5

=2×2×5×5

112=4×28

=4×4×7

=2×2×2×2×7

so highest common factor = 2×2 =4

which expression represents the approximate length of bc?

step-by-step explanation:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²