- A17 cm
- B26 cm
- C22 cm
- D13 cm
Step-by-Step Solution
If the equal sides were 4 cm: 4 + 4 = 8 < 9, impossible. So the sides are 9, 9, 4 and the perimeter = 22 cm. (17 cm uses the impossible 4, 4, 9.)
Answer: C) 22 cm
An isosceles triangle has sides of 4 cm and 9 cm (two of its sides are equal). What is its perimeter?
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