A garden is to be made in the form of an isosceles triangle. The equal side must be 4ft. Less than twice the base. The perimeter

Question

AURORKA [14]

3 years ago

11

A garden is to be made in the form of an isosceles triangle. The equal side must be 4ft. Less than twice the base. The perimeter

is 77ft. What is the length of the base ?

Mathematics

1 answer:

Natali5045456 [20] · Answer 1 · 2022-03-14T22:08:19+03:00

Natali5045456 [20]3 years ago

3 0

P = 77.
side (S1, S2) = 2(B) - 4.
P = S1 + S2 + B.
77 = (2B - 4) + (2B - 4) + B.
77 = 2B - 4 +2B - 4 + B.
77 = 5B - 8.
77 + 8 = 5B.
85 = 5B
B = 85/5
B=17 ft