Write a numerical expression to solve the problem and find its value. The length of the segment AB
| September 25, 2021 | education
Write a numerical expression to solve the problem and find its value. The length of the segment AB is 5 cm. The length of the segment CD is 2 times the length of the segment AB. Find the length of the segment MN if it is equal to the sum of the lengths of the segments AB and CD.
AB = 5 cm.
CD = 2 * AB.
MN -?.
Since the segment CD is twice as large as the segment AB, then CD = 2 * AB = 2 * 5 = 10 cm.
By the condition of the problem, it is known that the length of the segment MN is equal to the sum of the lengths of the segments AB and CD, which means:
MN = AB + CD = 5 + 10 = 15 cm.
Answer: 15 cm is the length of the segment MN.
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