Question
In the given figure, radius of a circle is 14 β2 cm.
PQRS is a square. EFGH, ABCD, WXYZ and LMNO are four identical squares. What is the total area (in cm2 ) of all the small squares?Solution
Radius β 14β2, diameter = 28β2 Side = diagonal / β2Β = 28β2 / β2 = 28 Side of square = 28 JO = 14 and JK = side of square small s Ok = 14 + 5 Kr = s/2 , and OX = 14β2 PGT β OKx (S/2)2 + (14 + S)2 = (14β2)2 S2 / 4 + 196 + S2 + 285 = 392 S = 5.6 a2Β = (5.6)2 = 31.36 = 31.36 Γ 4 = 125.44 cm2
15.99% of 549.99 Γ· 11.17 = ? Γ· 20.15
74.91% of 639.95 β 599.98% of 45 + 119.987 = ?
(4.88 Γ 5.76)2 - ?2 = 39.89 Γ 19.86
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
(1800.23 Γ· 29.98) + (816.32 Γ· 23.9) + 1634.11 = ?
1449.98 Γ· 50.48 Γ 10.12 = ? Γ 2.16
36.05 Γ 5.02 + 12.052 = ? + 9.09 Γ 4.04Β
(31.9)3 + (34.021)Β² - (16.11)3 - (42.98)Β² = ?