Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
ABC is the Δ in which BC = 4.8 m
AC = 6.4m and AD = 6 m
∴ area of ΔABC = `1/2 "BC" xx "AD"`
= `1/2 xx 4.8 xx 6`
= 14.4 m2
BE is height of Δ corresponding to 6.4 m
∴ `1/2 "AC" xx "BE" = 14.4`
`1/2 xx 6.4 xx "BE" = 14.4`
BE = `(14.4 xx 2)/6.4`
BE = `14.4/3.2`
= `9/2` = 4.5 m
Hence (i) 14.4 m2 (ii) 4.5 m
APPEARS IN
संबंधित प्रश्न
In triangle ABC; angle A = 90o, side AB = x cm, AC = (x + 5) cm and area = 150 cm2. Find the sides of the triangle.
Find the area and the perimeter of quadrilateral ABCD, given below; if AB = 8 cm, AD = 10 cm, BD = 12 cm, DC = 13 cm and ∠DBC = 90°.
The given figure shows a right-angled triangle ABC and an equilateral triangle BCD. Find the area of the shaded portion.
The perimeter of a triangle is 450 m and its side are in the ratio 12: 5: 13. Find the area of the triangle.
The base and the height of a triangle are in the ratio 5 : 3. If the area of the triangle is 67.5 m2; find its base and height.
The lengths of the sides of a triangle are in the ratio 4: 5 : 3 and its perimeter is 96 cm. Find its area.
One of the equal sides of an isosceles triangle is 13 cm and its perimeter is 50 cm. Find the area of the triangle.
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
The perimeter of a triangle is 28 cm. One of it’s sides is 8 cm. Write all the sides of the possible isosceles triangles with these measurements.
