Home
Class 11
MATHS
If bar(a), bar(b), bar(c ) are the sides...

If `bar(a), bar(b), bar(c )` are the sides and s is the semi perimeter of the tirangle ABC then the area of the triangle
`Delta = sqrt(s(s-a) (s-b) (s-c))`

Text Solution

Verified by Experts

The correct Answer is:
`Detla = sqrt(s(s-a) (s-b) (s-c))`
Promotional Banner

Topper's Solved these Questions

  • VECTOR (CROSS) PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise Exercise-3.1 (very Short Answer Questions)|16 Videos

  • VECTOR (CROSS) PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise Exercise-3.1 ( Short Answer Questions)|23 Videos

  • VECTOR (CROSS) PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise Practice Exercise|34 Videos

  • TRIGONOMETRIC RATIOS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) (PRACTICE SHEET (ADVANCED) SIGNLE ANSWER TYPE QUESTIONS)|23 Videos

Similar Questions

Explore conceptually related problems

If bar(a), bar(b), bar(c) are the position vectors of the vertices A, B, C of the triangle ABC, then the equation of the median from A to BC is

If A is the area and 2s is the sum of the sides of a triangle, then

If 2bar(i)+3bar(j)-6bar(k), 6bar(i)-2bar(j)+3bar(k) are two consecutive sides of a triangle, then perimeter of triangle is

If bar(a), bar(b), bar(c ) respresents the vertices A, B, and C respectively of DeltaABC then prove that |(bar(a) xx bar(b)) + (bar(b) xx bar(c ))+ (bar(c ) xx bar(a))| is twice the area of DeltaABC .

In Delta ABC, if bar(a), bar(b), bar(c) are position vectors of the vertices A, B, and C respectively, then prove that the position vector of the centroid G is (1)/(3) (bar(a) + bar(b) + bar(c))

In Delta ABC, sum ( tan ""(A)/(2))/( (s-b)(s-c)) =

Find the perpendicular distance of the point bar(c ) from the straight line bar(r )= bar(a) + t bar(b) and hence deduce that the area of the triangle whose vertices are the points bar(a), bar(b) and bar(c )" is" (1)/(2)|bar(b) xx bar(c ) + bar( c) xx bar(a) + bar(a) xx bar(b)| .

If D is the midpoint of the side BC of a triangle ABC then bar(AB)^(2)+bar(AC)^(2)=