Vấn đề 1Lựa chọnWhat is the perimeter of a rectangle with a length of 8 cm and a width of 5 cm?40 cm26 cm13 cm16 cm
Vấn đề 3Lựa chọnIf the area of a rectangle is 35 square meters and its width is 5 meters, what is its length?5 meters10 meters7 meters15 meters
Vấn đề 5Lựa chọnThe perimeter of a triangle is 30 cm. If two sides are 10 cm and 8 cm, what is the length of the third side?8101512