1. If the largest side of a triangle is A, and the other two sides are B and C. What relation exists between them?
ⓐ A=B+C
ⓑ A+C
ⓒ A>|B-C|
ⓓ |B-C|
ⓔ A=π(B-C)
2. A square PQRS is enclosed in another square ABCD. Find the ratio of the area of PQRS to the area of ABCD.
ⓐ 1/2
ⓑ 1/4
ⓒ 1/3
ⓓ 2/3
ⓔ 1/√2
3. What is the ratio of the area of triangle ABC to the area of square ADFC if CB=(CF)/4
ⓐ 1/4
ⓑ 1/8
ⓒ 1/16
ⓓ 2/5
ⓔ 3/8