If the area of the triangle formed by (0,0),(a,0) and (21,a) is equal to 21 sq unit, then the values of a are :

∵ Area of triangle =21∣∣0a1/200a111∣∣=21∴21=21∣(a2−0)∣⇒1=a2⇒1=a2 ⇒a=±1

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If the area of the triangle formed by (0,0), (a,0) and ( {1}{2

Question

If the area of the triangle formed by $(0, 0), (a, 0)$ and $(\frac{1}{2}, a)$ is equal to $\frac{1}{2}$ sq unit, then the values of $a$ are :

\pm 2

\pm 3

\pm 1

\pm 4

\pm 5

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If the area of the triangle formed by

(0, 0), (a, 0)

and

(\frac{1}{2}, a)

is equal to

\frac{1}{2}

sq unit, then the values of

a

are :

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10 mins ago

∵

Area of triangle

= \frac{1}{2}

∣ ∣ 0 a 1/2 00 a 111 ∣ ∣ = \frac{1}{2}

∴ \frac{1}{2} = \frac{1}{2} ∣ (a^{2} - 0) ∣

\Rightarrow 1 = a^{2}

\Rightarrow 1 = a^{2}

\Rightarrow a = \pm 1

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Question Text	If the area of the triangle formed by $(0, 0), (a, 0)$ and $(\frac{1}{2}, a)$ is equal to $\frac{1}{2}$ sq unit, then the values of $a$ are :
Answer Type	Text solution:1
Upvotes	150