Question

If the length of three sides of a triangle is 25 , 20 and 15 , then find the area of the triangle. *


155 cm2

150 cm2

160 cm2

140 cm2

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Answer 1

Answer:

given,

• sides of triangle= 25 cm,20cm,15cm
• as hypotenuse is greater than sum of other 2 sides hypotenuse is 25 cm
• base = √(25)²-(15)²
• base= 20 cm
• so area of triangle is (base × height )/2
• 300/2= 150 cm² is area

Answer 2

Answer:

150 cm2

using herons formula

FORMULA square root of {S [S-a] [S-b] [S-c] }

= S =a+b+c by 2

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