Advertisements
Advertisements
प्रश्न
The table given below contains some measures of the triangle. Find the unknown values.
| Side 1 | Side 2 | Side 3 | Perimeter |
| 11 feet | ? | 9 feet | 28 feet |
Advertisements
उत्तर
Perimeter of a triangle = sum of three sides
Perimeter = side 1 + side 2 + side 3
28 feet = 11 feet + side 2 + 9 feet
28 feet = 20 feet + side 2
28 – 20 = side 2
side = 8 feet
Tabulating the unknowns.
| Side 1 | Side 2 | Side 3 | Perimeter |
| 11 feet | 8 feet | 9 feet | 28 feet |
APPEARS IN
संबंधित प्रश्न
ABC is a triangle in which AB = AC = 4 cm and ∠A = 90°. Calculate:
(i) The area of ΔABC,
(ii) The length of the perpendicular from A to BC.
The base of a triangular field is three times its height. If the cost of cultivating the field at ₹ 36.72 per 100 m2 is ₹ 49,572; find its base and height.
The given figure shows a right-angled triangle ABC and an equilateral triangle BCD. Find the area of the shaded portion.
Find the area of a triangle whose base is 3.8 cm and height is 2.8 cm.
Find the area of a triangle whose sides are 27 cm, 45 cm and 36 cm.
Find the area of a triangle with a base 12cm and a height equal to the width of a rectangle having area of 96cm2 and a length of 12cm.
Find the perimeter and the area of a right angled triangle whose sides are 6 feet, 8 feet and 10 feet
Find the perimeter of A scalene triangle with sides 7 m, 8 m, 10 m
In the following figure, all triangles are equilateral and AB = 8 units. Other triangles have been formed by taking the mid points of the sides. What is the perimeter of the figure?
Find the perimeter of a triangle with sides measuring 10 cm, 14 cm and 15 cm.
