Question

Use three or more sentence to explain why every equilateral triangle must also be an acute triangle.

Answer 1

if you can check the angle of the equilateral triangle all of them are equal to 45 degrees and if you can add those 3 angles they will give 180
hence,this is the characteristic of equilateral triangle.As you know that 45 degrees is the shows that the anlgle is acute
2the sides of the equilateral triangle are equal so they must join at an angle of 45