Start learning 50% faster. Sign in now
Side of the equilateral triangle = 18 cm Radius of circum - circle R = 18/√3 cm Radius of in - circle r = 18/2√3 = 9/√3 cm Area between the circum - circle and in – circle = π (R2 – r²) = π (R+ r) (R-r) = (22/7) × (18/√3 + 9/√3) (18/√3-9/√3) = (22/7) × 27/√3 × 9/√3 = (81×22)/7 = 1782/7 cm² =254(4/7) cm2
If “ A * B $ C & D % B ”, then How D is related to A?
There are seven members (D, E, F, G, I, K and H) in a family. H is the daughter of F’s brother. K is the father of D. I is the mother of K. G is fathe...
'A + B' means 'A is the father of B'. 'A - B' means 'A is the son of B'. 'A ÷ B' means 'A is the daughter of B'. 'A X B' means 'A is married to B'. In ...
If ‘P × Q’ mean ‘Q is the sister of P’, ‘P + Q’ means ‘Q is the daughter of P’ , ‘P ÷ Q’ means ‘P is the wife of Q’, and ‘P-...
How is M related to O?
If A # B means ‘A is the father of B’, A $ B means ‘A is the brother of B’, A % B means ‘A is the son of B’, A & B means ‘A is the sister ...
D is the grandmother of _____.
How is J related to H?
How is J related to Q?
How is G related to the wife of L?