Question
PSLE
Pamela had a piece of ribbon 18a cm long. She formed a triangle, with sides measuring a cm, 3a cm and 20 cm, with part of the wire.
  1. Express the length of the remaining ribbon in terms of a in the simplest form.
  2. Pamela used the remaining ribbon to form a rectangle of length 3a cm. If a = 3, what was the breadth of the rectangle?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
Pamela had a piece of ribbon 18a cm long. She formed a triangle, with sides measuring a cm, 3a cm and 20 cm, with part of the wire.
  1. Express the length of the remaining ribbon in terms of a in the simplest form.
  2. Pamela used the remaining ribbon to form a rectangle of length 3a cm. If a = 3, what was the breadth of the rectangle?