Question

1. State Heron's Formula for triangle. 2. Find the area of the equilateral triangle whose perimeter is 60 cm. 3. An isosceles right angled triangle has area 32 cm 2 . Find the length of its hypotenuse. 4. If the area of an equilateral ABC is 32 3 cm 2 , then find the perimeter of the triangle. 5. Find the area of an isosceles triangle whose each equal side is 5 cm and third side is 8 cm. 6. Find the area of a right triangle whose sides are 3 cm, 4 cm, 5 cm. 7. Find the area of a triangle whose base is 16 cm and altitude is 24 cm. 8. Find the area of an equilateral triangle whose side is 4 cm. 9. Find area of an isosceles triangle which has perimeter 50 m and whose unequal side is 10 m. 10. Find the perimeter of an isosceles right angled triangle having an area of 5000 m²

Answer 1

Answer:

1) In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

2) A≈173.21cm²

Answer 2

Answer:

2) 173.21cm^2

Step-by-step explanation:

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