Advertisements
Advertisements
Question
Find the perimeter and the area of a right angled triangle whose sides are 6 feet, 8 feet and 10 feet
Solution
Perimeter of a right angled triangle = sum of three sides
= (6 + 8 + 10) feets
= 24 feets
Area of a right angled triangle = `1/2 × ("b" × "h") "unit"^2`
Here the longest side is 10 feet which is the hypoteneous
∴ Sides containing right angle are 6 feet and 8 feet
Let base = 6 feet and height = 8 feet
∴ Area = `1/2 xx 6 xx 8 "feet"^2`
= 24 sq.feet
Area = 24 sq.feet
APPEARS IN
RELATED QUESTIONS
Find the area of a triangle whose sides are 18 cm, 24 cm, and 30 cm. Also, find the length of altitude corresponding to the largest side of the triangle.
The sides of a triangular field are in the ratio 5: 3: 4 and its perimeter is 180 m. Find:
(i) its area.
(ii) the altitude of the triangle corresponding to its largest side.
(iii) the cost of leveling the field at the rate of Rs. 10 per square meter.
Two sides of a triangle are 6 cm and 8 cm. If the height of the triangle corresponding to 6 cm side is 4 cm; find :
(i) area of the triangle
(ii) height of the triangle corresponding to 8 cm side.
Two sides of a triangle are 6.4 m and 4.8 m. If the height of the triangle corresponding to 4.8 m side is 6 m;
find :
(i) area of the triangle ;
(ii) height of the triangle corresponding to 6.4 m sides.
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.
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 | ? |
In the given 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?
The perimeter of a triangle is 28 cm. One of it’s sides is 8cm. Write all the sides of the possible isosceles triangles with these measurements.
Area of an isosceles triangle is 48 cm2. If the altitudes corresponding to the base of the triangle is 8 cm, find the perimeter of the triangle.