It's too easy just to calculate the actual value:
726 × 5 = 726 × 10/2 = 7260/2 = 3630
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You might estimate the value as 700 × 5 = 3500. You might estimate that to be low by 26/700 ≈ 4%, so about 140.
It might be -0.35, -0.3, 0.5, and 0.55
Answer:
40°
Step-by-step explanation:
It's half the angle at the centre
½×80 = 40
The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle
