Step-by-step explanation:
since this a right-angled triangle
hypotenuse side = ?
opposite side = 3.7 mm
adjacent side = 7.5 mm
but |hyp|² = |opp|² + |adj|²
|hyp|² = 3.7² + 7.5²
|hyp|² = 13.69 + 56.25
|hyp|²= 69.94
hyp = √69.94
hyp = 8.36
hyp ≈ 8 mm to the nearest tenth
