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In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the semi-perim

Practice Questions

Q1
In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the semi-perimeter of the triangle? (2022)
  1. 12 cm
  2. 14 cm
  3. 16 cm
  4. 18 cm

Questions & Step-by-Step Solutions

In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the semi-perimeter of the triangle? (2022)
  • Step 1: Identify the lengths of the sides of triangle PQR. They are PQ = 8 cm, QR = 6 cm, and PR = 10 cm.
  • Step 2: Add the lengths of all three sides together. Calculate 8 + 6 + 10.
  • Step 3: The sum of the sides is 24 cm.
  • Step 4: To find the semi-perimeter, divide the total sum by 2. Calculate 24 / 2.
  • Step 5: The result is 12 cm, which is the semi-perimeter of triangle PQR.
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