NDA · Mathematics

MN19 · Properties of Triangles — Quiz

NDA 20 Questions No Negative Marking

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Question 1

In triangle ABC, the sine rule states: (NDA PYQ)

Aa/sinA = b/sinB = c/sinC

BsinA/a = sinB/b = sinC/c = 2R

Ca/sinA = b/sinB = c/sinC = 2R

Da sinA = b sinB = c sinC

Question 2

The cosine rule gives a² as: (NDA PYQ)

Ab² + c²

Bb² + c² − 2bc cosA

Cb² + c² + 2bc cosA

D(b+c)² − 2bc

Question 3

The area of triangle ABC using two sides and included angle is: (NDA PYQ)

Aab cosC

B½ab cosC

Cab sinC

D½ab sinC

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