A triangle has a
has a area of 90 cm². Find the
length of the base is 3 cm more
than height?
Answers
Answered by
0
Step-by-step explanation:
(b(b - 3))/2 = 90
b2 - 3b = 180
b2 - 3b - 180 = 0
(b - 15)(b + 12) = 0
b - 15 = 0
b = 15
b + 12 = 0
b = -12
Answered by
0
Answer :
Base = 3cm , Height = h
Area = 90 cm square
Area = 1/2 *b * h
900 = 1/2 * 3 * h
900 = 3/2 * h
h = 900 × 2/3
h = 600 cm
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