The third side of the triangle is 40 cm, the second is 60% of the thirds, and the first is 75% of the second.
| August 17, 2021 | education
The third side of the triangle is 40 cm, the second is 60% of the thirds, and the first is 75% of the second. Find the perimeter of the triangle.
1) Find out how long the second side of the triangle has, if it is known that it is 60% of the third side, and the third side is 40 cm long.
40 – 100%
X – 60%.
40 * 60/100 = 24 cm.
2) Find the length of the first side if it is known that its length is 75% of the length of the second side of the triangle, and the second side is 24 cm.
24 – 100%
X – 75%.
24 * 75/100 = 18 cm.
3) Find the perimeter of a triangle with sides of 40 cm, 24 cm and 18 cm.
40 + 24 + 18 = 82 cm.
Answer: The perimeter of the triangle was 82 cm.
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