# Find the area of the triangle whose vertices are: (8, 1), (k, -4), (2, -5) - Mathematics

Sum

Find the area of the triangle whose vertices are: (–5, –1), (3, –5), (5, 2)

#### Solution

Area of the given triangle = 1/2 [-5 { (-5)- (4)} + 3(2-(-1)) + 5{-1 - (-5)}]

= 1/2{35 + 9 + 20}

= 32 square units

Concept: Area of a Triangle
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#### APPEARS IN

NCERT Class 10 Maths
Chapter 7 Coordinate Geometry
Exercise 7.3 | Q 1.2 | Page 170