the length of two sides of a right triangle containing the right angle differ by 2 cm. If the are of triangle is 24 cm square , find the perimetre of the triangle.
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Answer:
e
24 cm
Step-by-step explanation:
area = 1/2 bh
h = b+ 2
1/2 b × (b+2) = 24
b^2 + 2b - 48 = 0
b= -8, b = 6
b can not be negative
b = 6 cm, h = 8 cm
apply pythagoras theorem
Hypotenuse = (6×6 + 8×8)^1/2 = 10 cm
perimeter = 6 + 8 + 10 = 24 cm
e
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