Answer:
1039.5 cm²
Step-by-step explanation:
Area (shaded) = 22/7 x 21 x 21 - 22/7 x 21/2 x 21/2
= 1386 - 346.5
= 1039.5 cm²
Check the picture below.
Answer: B, x = 2.25 cm
it will option D 100degree bcz of corresponding angle property
