a) The sides of a right -angled triangle are (x-1)cm, 3xcm, (3x+1)cm. find i)The value of x, ii) the length of its sides, iii) its area.
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Answer:
x - 1 + 3x + 3x + 1 = 7x
x = -7
•°• the value of x is -7
the length of each sides are, (-7-1 ) = -8cm
(3×-7) = -21 & 3(-7) + 1 = -20
it's area is 1/2 × b × h
1/2 × -21 × -20 = 210 cm ²
atharvakirad654:
thanks you
wlcm
can we do it by pythagorean theorem
why not
but it is getting difficult by pythagorean theorem
the equation is comeing like this x2-2+4x
ya
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