Find the area of the equilateral ABCD. Here, AC = 22 cm, BM = 3 cm, DN

1.	Find the area of the equilateral ABCD. Here, AC = 22 cm, BM = 3 cm, DN = 3 cm and BM ⊥ AC, DN ⊥ AC.
Answer» Here, AC = 22 cm, BM = 3 cm, DN = 3 cm Area of quadrilateral ABCDF = Area of Δ ABC + Area of Δ ADC = 1/2 x AC x BM + 1/2 x AC x DN = 1/2 x 22 x 3 + 1/2 x 22 x 3 = 3 x 11 + 3 x 11 = 33 + 33 = 66 cm² Thus, the area of quadrilateral ABCD is cm².

Find the area of the equilateral ABCD. Here, AC = 22 cm, BM = 3 cm, DN = 3 cm and BM ⊥ AC, DN ⊥ AC.

Answer»

Here, AC = 22 cm, BM = 3 cm, DN = 3 cm

Area of quadrilateral ABCDF = Area of Δ ABC + Area of Δ ADC

= 1/2 x AC x BM + 1/2 x AC x DN

= 1/2 x 22 x 3 + 1/2 x 22 x 3 = 3 x 11 + 3 x 11 = 33 + 33 = 66 cm²

Thus, the area of quadrilateral ABCD is cm².

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Find the area of the equilateral ABCD. Here, AC = 22 cm, BM = 3 cm, DN = 3 cm and BM ⊥ AC, DN ⊥ AC.

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