ABC is an equilateral triangle with side 10 cm. The perimeter of the triangle formed by joining the mid points of the sides of ΔABC is
A) 30 cm
B) 20 cm
C) 15 cm
D) 5 cm
1 Answers
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Correct Answer - x-2=0, 6x-7y+79=0, 6x+7y+65=0
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2 Answers 1 views
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Correct Answer - D The figures formed by joining the midpoints of the adjacent sides of different types of quadrilaterals are : `{:("Quadrilateral","Square","||gm","Rectangle","Rhombus"),(darr,darr,darr,darr,darr),("||gm","square","||gm","Rhombus","Rectangle"):}`
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`Delta I_(1)I_(2)I_(3)` is an excentral triangle of an equilateral triangle `Delta ABC` such that `I_(1)I_(2)=4` unit, if `DeltaDEF` is pedal triangle
Correct Answer - 4 `[4]`
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