2009
Mathematics
67ca00ce0c643c71d77dee1f
If the hypotenuse of a right-angled isosceles triangle is 2cm. What is the area of the triangle?
A.
1/√2 cm2
B.
1 cm2
C.
√2 cm2
D.
2√2 cm2
Correct Answer: 1 cm2
Explanation
X2 + x2 = 22 2x2 = 4 x2 = 4/2 x2 = 2 x = +/-√2 Area of Δ = 1/2bh = 1/2 x √2 x √2 = 2/2 = 1 cm2
X2 + x2 = 22 2x2 = 4 x2 = 4/2 x2 = 2 x = +/-√2 Area of Δ = 1/2bh = 1/2 x √2 x √2 = 2/2 = 1 cm2THIS WEEK's
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