Question

12. If you let x represent the first of three consecutive EVEN integers, you can represent the other two integers by ___ and ____

13. An equilateral triangle has a perimeter of 129cm. Find the length of each side of this triangle

The length of each side of the equilateral triangle is __ __

14. One side of a triangle is 2 inches longer than the side that is the base of the triangle. The third side is 6 inches longer than the base. If the perimeter is 32 inches, find the length of each side

Answer 1

Explanation:

12.

x is the first even integer.

then x+2 is the next.

and x+4 is the third even integer.

13.

this means that all 3 sides are equally long.

therefore, one side is 1/3 of the perimeter.

129 / 3 = 43 cm.

the length of each side is 43 cm.

14.

x = the length of the baseline.

x + (x + 2) + (x + 6) = 32

3x + 8 = 32

3x = 24

x = 8

the baseline is 8 in long.

one side is 8+2 = 10 in long.

the other side is 8+6 = 14 in long.