∆abc is an isosceles triangle. the length of cb is 12 feet 4 inches and the congruent sides are

each 3/4 this length.

2. what is the perimeter of ∆abc?

a. 31 ft. 4 in.

b. 21 ft. 7 in.

c. 30 ft. 10 in.

d. 18 ft. 6 in.

3. in ∆def, de and df are each 6 feet 3 inches long. this length is 0.75 times the length of

fe. what is the perimeter of ∆def?

a. 12 ft. 4 in.

b. 17 ft. 2 in.

c. 14 ft. 7 in.

d. 20 ft. 10 in.

4. ∆jkl is an isosceles triangle with jl ≅ kl. if jk is three more than x, kl is 17 less than four

times x, and jl is 45 less than six times x, find x and the measure of each side.

e. 39, 39, 17

f. 17, 15, 17

g. 17,17,39

h. 42,42,42