Prove that an equilateral triangle must have 60 degrees angles

OK

Step-by-step explanation:

Each of the equal angles of any equilateral triangle is equal to one-third of two right angles (180 divided by 3, which is 60 degrees)’ The compasses thus set at 60 degrees allude to the equilateral triangle and, if the two points were united by a straight line, would form an equilateral triangle.

Step-by-step explanation:

Since all the sides in equilateral triangle are equal ,Angles are also equal

Let it be x

The Angle sum property of triangle is 180

x+x+x=180

3x=180

x= 180/3

=60°

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

step-by-step explanation:

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