The ratio of the base to the height of a right angled triangle is 4 : 5. If the area of the right angled triangle is 80 cm2, what is the height of the triangle?
(a) 16√2cm
(b) 10 cm
(c) 8 cm
(d) 20 cm
(e) 10√2cm
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0
i think that the right answer is (a)
hope it help you
amanchaudhary93:
i thik u r wrong answer e is correct
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2
=>1/2 × 4x × 5x = 80
=>10x ² = 80
=>x² = 80/ 10= 8
X = √ 8
height = 5 X = 5 × √ 8 = 5 × 2√2 = 10 √2 cm
option (E) will be the answer 10√2 cm
=>10x ² = 80
=>x² = 80/ 10= 8
X = √ 8
height = 5 X = 5 × √ 8 = 5 × 2√2 = 10 √2 cm
option (E) will be the answer 10√2 cm
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