Advertisements
Advertisements
Question
The area of triangle formed by the points (− 5, 0), (0, – 5) and (5, 0) is
Options
0 sq.units
25 sq.units
5 sq.units
none of these
Advertisements
Solution
25 sq.units
Explanation;
Hint:
Area of the ∆

= `1/2[25 + 0 + 0 - (0 - 25 + 0)]`
= `1/2[25 + 25]`
⇒ `1/2 xx 50`
= 25 sq.units
APPEARS IN
RELATED QUESTIONS
The lengths of the sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 144 cm. Find the area of the triangle and the height corresponding to the longest side.
The adjacent sides of a parallelogram ABCD measure 34 cm and 20 cm, and the diagonal AC measures 42 cm. Find the area of the parallelogram.
Find the area of a triangle whose sides are 3 cm, 4 cm and 5 cm respectively.
A man walks near a wall, such that the distance between him and the wall is 10 units. Consider the wall to be the Y-axis. The path travelled by the man is
The area of a triangle is 5 sq. units. Two of its vertices are (2, 1) and (3, −2). The third vertex is (x, y) where y = x + 3. Find the coordinates of the third vertex.
The perimeter of a triangular plot is 600 m. If the sides are in the ratio 5 : 12 : 13, then find the area of the plot
Find the area of an equilateral triangle whose perimeter is 180 cm
An advertisement board is in the form of an isosceles triangle with perimeter 36 m and each of the equal sides are 13 m. Find the cost of painting it at ₹ 17.50 per square metre.
A field in the form of a parallelogram has sides 60 m and 40 m and one of its diagonals is 80 m long. Find the area of the parallelogram.
The perimeter of a triangle is 50 cm. One side of a triangle is 4 cm longer than the smaller side and the third side is 6 cm less than twice the smaller side. Find the area of the triangle.
