guys..plz do sixth question..
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perimeter = 240 = 78+50+Y
Y = 240 - 128 = 112
s = 1/2 the perimeter = 120
Area = sqrt [s (s-a)(s-b)(s-c)] = sqrt (120 x 70 x 42 x 8) = 1680
Area = 1680 = 1/2 x 50 x h
h = 67.2
Y = 240 - 128 = 112
s = 1/2 the perimeter = 120
Area = sqrt [s (s-a)(s-b)(s-c)] = sqrt (120 x 70 x 42 x 8) = 1680
Area = 1680 = 1/2 x 50 x h
h = 67.2
samRyjel:
thanks a million..
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