A=πr²
pool=π(y-4)²=π(y²-8y+16)
total=π(y+4)²=π(y²+8y+16)
walkway=total-pool
walkway=π(y²+8y+16)-π(y²-8y+16)=
π(y²+8y+16-y²+8y-16)=
π(16y)=
16πy
first option is answer
Answer: 4. A
5. C
6. B
Step-by-step explanation:
Answer:
Step-by-step explanation:
# Statement Reasoning
1). KJ║ML Given
2). ∠KLM ≅ ∠LKJ Alternate interior angles
3). KL ≅ LK Reflexive property
4). ΔKJL ≅ ΔLMK SAS congruence postulate
Answer:
um
Step-by-step explanation:
176 10cent per 1 message
Always congruent due to the way the shape is built