Triangle a: all sides have length 12 cm. triangle b: two sides have length 10 cm, and the included angle measures 60°. triangle c: base has length 15 cm, and base angles measure 40°. triangle d: all angles measure 60°. which triangle is not a unique triangle?

Quick! what is the area of this trapezoid?

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)