The area of a triangle with vertices A (0, 8) , O (0,0)

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The area of a triangle with vertices A (0, 8) , O (0,0) and B (5, 0) is :

1. 8 sq. units
2. 13 sq. units
3. 20 sq. units
4. 40 sq. units

Correct Option: C

Clearly, OA = 5 units
OB = 8 units

∴ Area of ∆OAB =	1	× OA × OB =	1	× 5 × 8 = 20 sq.units
	2		2