What is the area of the triangle formed by points (0,0), (3,4) and (4,5)?
बिंदु (0,0), (3,4) और (4,5) से बने triangle का area क्या है?
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Correct Answer
D. 1 / 2
ExplanationStep 1: triangle area = 1/2 |x1(y2-y3)+x2(y3-y1)+x3(y1-y2)|. Step 2: substituting values gives absolute determinant 1, so area is 1/2. Step 3: tip: for coordinate geometry, determinant method is fastest.
Step 1: triangle area = 1/2 |x1(y2-y3)+x2(y3-y1)+x3(y1-y2)|। Step 2: values रखने पर determinant absolute 1 है, इसलिए area 1/2। Step 3: tip: coordinates हों तो determinant method fastest है।