Saved Bookmarks
| 1. |
The base of a triangle is 9cm correct to the nearest cmThe are of this triangle is 40 cm² correct to the nearest 5 cm²Calculate the upper bound for the perpendicular height of this triangle |
|
Answer» AREA of triangle is 40 cm² CORRECT to nearest 5cm² . ∴ Area of triangle = ( 40 ± 5) cm² ∴ upper bound for area of triangle is = (40 + 5) cm² = 45cm² Base of triangle = 9cm ∵ area of triangle = 1/2 base × height height = 2 × area of triangle/base ∴ upper bound for height of triangle = 2 × upper bound area/base = 2 × 45/9 = 10CM Hence ANSWER is 10cm |
|