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