What is the area of an isosceles △ with side-lengths of 22 and 61 ?
A.
660
B.
682
C.
1342
D.
none of above
Exam No：2020 First Round Grades 10-12 Year：2020 Question No：16
Answer:
A
Knowledge points:
G10-12 - Geometry - Advanced Triangle Properties (Angle Bisector, Viviani's)
Solution:
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