Fewer meters, centimeters are too small of a unit to measure a doorway
Answer:
5/7 x 4 = 2.8571 in decimal form.
5,12,13
5X5=25
12X12=144
25+144=169
answer: square root 169=13
An equilateral triangle has 3 equal sides. Since one side is 14 cm, then all sides are 14 cm. You multiply 4 by 3 and you get your answer.
14*3=42. The perimeter is 42cm.