The side of triangle is 7.5 cm, 4 cm and 9 cm respectively and circum radius is 1.5 cm then finds the area of triangle?
1. 35 square cm
2. 45 square cm
3. 55 square cm
4. 65 square cm
1. 35 square cm
2. 45 square cm
3. 55 square cm
4. 65 square cm
Correct Answer – Option 2 : 45 square cm
Given:
The side of the triangle is 7.5 cm, 4 cm and 9 cm respectively and circum radius is 1.5 cm
Formula used:
Area of triangle = (Product of sides)/ 4 × circum radius
Calculation:
By using the formula
∴ Area of triangle = (7.5 × 4 × 9)/(4 × 1.5) = 45 square cm
Hence, option (2) is correct