# 1真/假A rectangle has a length of 8 cm and a width of 5 cm. Its area is calculated by multiplying the length and width.
# 3選擇題Which of the following shapes has 4 equal sides and 4 right angles?RectangleTriangleSquareCircle
# 4真/假A triangle has a base of 10 cm and a height of 7 cm. The area of a triangle is calculated as (base * height) / 2.