Question
In the given figure, AB, AE, EF, FG and GB are
semicircles. AB = 56 cm and AE = EF = FG = GB. What is the area (in cm2) of the shaded region?Solution
AE = EF = FG = GB = 14 Radius = 14/2 = 7 Radius of Semicircle = 7 OF = MF – MO = (28 – r) FB = MF = 28 ∠ 900, OF is targent for circle EF centre to targent 900 ∆ UPF apply PGT (7)2 + (28 – r)2 = (7 + r)2 49 = (7 + r)2 – (28 – r)2 49/7 = (35) – (2r – 21) 7 = 10r – 105 10r = 112 r = 11.2 area = πr2 = 22/7 × 11.2 × 11.2 = 394.24 cm2
The Pusa biodecomposer, a    microbial consortium of fungal species for rapid decomposition of paddy straw has been developed by ______Â
...Who were the scientists responsible for independently rediscovering Mendel's laws of inheritance in 1900?
The World Meteorological Day is held annually on____
Which statements accurately describe the Pradhan Mantri Matsya Sampada Yojana (PMMSY)?
A. It is completely a Central Sector Scheme.
B....
Which Indian state produces large quantity of pulses?Â
Slash and Burn cultivation is an agricultural technique in which a plot of land is cleared by cutting down and burning trees and then used for growing c...
Which family of birds do ducks belong to?
Pedology is a science related to
The temperature which double the chemical reaction takes place in food products is
What is the reason for the red colour of the red soil?
Relevant for Exams:
