Advertisements
Advertisements
Question
The table given below contains some measures of the triangle. Find the unknown values.
| Side 1 | Side 2 | Side 3 | Perimeter |
| 6 cm | 5 cm | 2 cm | ? |
Advertisements
Solution
Perimeter of a triangle = sum of three sides
Perimeter = 6 + 5 + 2 cm
= 13 cm
p = 13 cm
Tabulating the unknowns.
| Side 1 | Side 2 | Side 3 | Perimeter |
| 6 cm | 5 cm | 2 cm | 13 cm |
APPEARS IN
RELATED QUESTIONS
AD is altitude of an isosceles triangle ABC in which AB = AC = 30 cm and BC = 36 cm. A point O is marked on AD in such a way that ∠BOC = 90o. Find the area of quadrilateral ABOC.
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.
Find the area of a triangle, whose sides are :
21 m, 28 m, and 35 m
The area of an equilateral triangle is `144sqrt3` cm2; find its perimeter.
Find the area of a triangle whose base is 3.8 cm and height is 2.8 cm.
The perimeter of a triangle is 72cm and its sides are in the ratio 3:4:5. Find its area and the length of the altitude corresponding to the longest side.
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 |
Find the perimeter of A scalene triangle with sides 7 m, 8 m, 10 m
Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is its third side?
In the following figures, perimeter of ΔABC = perimeter of ΔPQR. Find the area of ΔABC.
