the length of each leg of an isosceles triangle is 3 times the base. The perimeter of the triangle is 28 m. Fi

Question

the length of each leg of an isosceles triangle is 3 times the base. The perimeter of the triangle is 28 m. Find each side length

Answer 1

so each leg equals 3x. 3x+3x+x=28.
7x=28
28/7 equals 4
base 4
legs 12

Answer 2

ok watch this let base = b , each leg = 3b
perimeter of triangle = b + 2 legs = b + 3b + 3b = 7b
7b = 28 then b = 28 / 7 = 4
then leg = 12 and base = 4

Answer 3

Let the base be B. Then B + 3B + 3B = 28, so B = 4 and the other two sides are each 12.

Answer 4

perimeter = base + 2*leg
leg=3*base
perimeter=28
therefore, 28=base+2*(3*Base)
28=base+6base=7base
7base=28m,
base=4m
leg=3*base=3*4=12m
perimeter=base+leg+leg=4+12+12=28

Answer 5

Doing it in my head , 12, 12, 4.

Answer 6

b = base

b + 3b + 3b = 28
7b = 28
b = 4

base = 4, sides = 3(4) = 12

Answer 7

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