Question
ABCD is a rectangle with AB = 10 cm and BC = 8 cm. O is
the centre of a circle touching the three sides AB, BC, and CD of the rectangle ABCD. Find the area (in cm²) of △ OBC.Solution
ABCD is the rectangle where AB = CD = 10 cm and BC = AD = 8 cm. EF and BC are equal and parallel to each other. EF = BC = 8 cm Hence, EO = OF = 4 cm Thus, OEC = BCE = EOG = 90° Hence, COB = 90° Considering, the square ECGO and FBGO, OB = OC = 4√2 cm Now, AOBC is the right-angled triangle. Hence, the area of AOBC =1/2 x 8 x 4 = 16 cm² 
Which among the following is categorized as a Mediterranean poultry breed?
The isolation distance for the production of foundation seed in bajra is:
Which one of the following soil type will have maximum soil erodibility factor?
What is the primary role of organic matter in soil?
Name the alkaloid that is obtained from the autumn crocus, which is the most important chemical used by breeders to induce the doubling of chromosome nu...
In germination test the commonly used term B P stands for:
Which of the following is considered as an essential step in the exchange of gases during respiration and photosynthesis?
What is the tag color of certified seed?
Which process describes the mixing of soil by earthworms?
Leaf curl disease of cotton is due toÂ
Relevant for Exams:
