Prove that the area of an equilateral tr...

Prove that the area of an equilateral triangle `(sqrt3)/(4)a^2`, where 'a' is the side of te triangle.

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AREA OF PARALLELOGRAMS AND TRIANGLES
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MODERN PUBLICATION-AREA OF PARALLELOGRAMS AND TRIANGLES-EXERCISE

Prove that the area of an equilateral triangle (sqrt3)/(4)a^2, where '...
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In the figure. Show that ABCD is a parallelogram. Calculate the are...
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Find the area of a rhombus whose diagonals are of lengths 10 cm and 8....
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Calculate the area of trap. PQRS, given in the figure.
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In the figure. ABCD in a trapezium in which AB||DC. Proe that ar(trian...
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In a quad. ABCD it is given that BD = 16 cm. If AL bot BD and CM bot B...
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ABCD is a parallelogram whose diagonals intersect at E. AC is produced...
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ABCD is a parallelogram whose diagonals intersect at E. AC is produced...
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P and Q are respectively the midpoints of sides AB and BC or a triangl...
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P and Q are respectively the midpoints of sides AB and BC or a triangl...
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P and Q are respectively the midpoints of sides AB and BC or a triangl...
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In fig. ABCD and AEFG are two parallelograms. If angleC=55^@ and deter...
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ABCD and AEFD are two parallelograms Prove that: ar(triangleAPE) : a...
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In Fig. ABCD is a parallelogram. Prove that ar (DeltaACP) = ar (Del...
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In triangleABC, it L and M are points on AB and AC respectively such t...
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In triangleABC, it L and M are points on AB and AC respectively such t...
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D and E are points on sides AB and AC respectively of DeltaABC such th...
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D and E are points on sides AB and AC respectively of DeltaABC such th...
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ABCD is parallelogram. X and Y are the mid-points of BC and CD respect...
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PQRS and PABC are two parallelograms of equal area. Prove that QC||BR
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Two parallelograms ABCD and AEFB are drawn on opposite sides of AB. Pr...
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