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What is the inradius of a triangle with sides 7 cm, 8 cm, and 9 cm?

Practice Questions

1 question
Q1
What is the inradius of a triangle with sides 7 cm, 8 cm, and 9 cm?
  1. 3 cm
  2. 4 cm
  3. 5 cm
  4. 6 cm

Questions & Step-by-step Solutions

1 item
Q
Q: What is the inradius of a triangle with sides 7 cm, 8 cm, and 9 cm?
Solution: Using the formula r = A/s, where A is the area and s is the semi-perimeter. Area = 26 cm², s = 12 cm, so r = 26/12 = 4 cm.
Steps: 0

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