 Given that ∠ABC ≅ ∠DBE, which statement must be true? ∠ABC ≅ ∠ABD ∠ABD ≅ ∠CBE ∠CBD ≅ ∠DBE ∠CBD ≅ ∠ABC
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<h3><u>Solution: </u></h3>
Radius of Cylindrical Pillar , r = 28 Cm = 0.28 m.
- Height, h= 4 m.
Curved surface area of a Cylindrical = 2πrh.
Curved surface area of a pillar -
Curved surface area of 24 such Pillar :-
(7.04 x 24 = 168.96m²)..
- Cost of painting an area of 1 m² = Rs8...
• Therefore , cost of painting 1689.6m² :-
( 168.96 x 8 = Rs 1351.68)...