Question

Prove that all sides of a equilater triangle are equal.​

Answer 1

Answer:

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Step-by-step explanation:

Here we will prove that the three angles of an equilateral triangle are equal. Given: PQR is an equilateral triangle. To prove: ∠QPR = ∠PQR = ∠ PRQ.

Answer 2

Answer:

Given:-

let ABC is an equilateral triangle

∴AB=BC=AC

(all sides of equilateral triangle are equal)

To prove

∠A=∠B=∠C

proof=AB=AC→(i)

⇒∠C=BC

⇒∠B=∠A→(ii)

from(i)&(ii)

∠A=∠B=∠C

angle opposite to equal sides are equal).