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Each of the equal sides of an isosceles triangle is 25 m and base 30m, so find the area.​

Answer»

ANSWER: The FORMULA for the area of a triangle is  A=12⋅b⋅h  

When the height of an isosceles triangle is drawn to the base it bisects the base.   Therefore  x=y=15 . Since we have two SIDES of a right triangle we can use the Pythagorean Theorem to find the height.

25² = h² + 15²

h² = 625 − 225 = 400  

h = 20m  

A=1/2×30×20 = 300m²

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