△ ABC is isosceles right-angle triangle. Draw a perpendicular AO from A on side BC In ΔΑΒΟ : sin 45 = AO/AB 1/√2 =AO/7 AO =7/√2 cm AO is the perpendicular bisector of BC and, BC = 7√2 given triangle ABO = triangle AOC BO= (1 /2) × BC BO = 7√2/2 = 7/√2 Also, BO = CO (cpct) Area of Triangle AOB = Area of triangle ACO = 1/2 × CO×AO = 1/2 ×7/√2 ×7√2 = 49/4 For the area of sector ACD: 2 π angle has area → лг² π /4 angle has area =Area ACD = (πr2 / 2π) × π /4 = πr2/8 (put the value r). = 49 π /8 Area of portion AOD = (49 π /8-49/4) cm² = 49/4(π /2-1) cm² Total common area = 4× Area of AOD (Due to symmetricity) = 4 x 49(π /2-1) = 49(π /2-1) = 49/2 (π – 2) cm² .
Which of the following statement is false regarding Heterosis?
…………………… has been used as a synonym of heterosis. It is generally agreed that ……………….. describes only the superiority of hyb...
………………………………. provides maximum opportunity for the breeder to use his skills for selection of desirable plants from segregating ...
In the pedigree method, individual plants are selected from …………….. and subsequent generations, and their ...
Which term describes the condition when the stamens and pistils of hermaphrodite flowers mature at different times, facilitating cross-pollination?
Flowers do not open at all which ensures complete self pollination in
Which mechanism refers to the presence of unisexual flowers on separate plants, as seen in plants like papaya and spinach?
Which among the following factors is/are not essential for commercial exploitation of heterosis?
Which tomato variety was developed specifically for prolonged storage and transportation?
Inbreeding or consanguineous mating is mating between individuals related by ………………..
