Question

The base of triangle is 4/3 cm. The perimeter of triangle is 22/15 cm. What is the length of remaining equal side?

Answer 1

Perimeter (total length = P) = $\frac{22}{15}$

Base (unequal side = u) = $\frac{4}{3}$

Now to get length of equal sides, use formula: P = 2e + u

P = 2e + u

$\frac{22}{15}$ = 2e + $\frac{4}{3}$

$\frac{22}{15}$ - $\frac{4}{3}$ = 2e

$\frac{2}{15}$ = 2e

e = $\frac{2}{15}$ ÷ 2

e = $\frac{1}{15}$

∴ Length of each equal side is $\frac{1}{15}$.

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Answer 2

Let the equal sides of the triangle be x centimetre.
=>4/3 + x + x = 22/15
=>2x = 22/15 - 4/3
=>x = 2/15 ÷2
=>x = Length of the remaining equal sides of the triangle = 1/15 cm.


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