Isosceles $$\(\Delta T\)$$ has legs of length 120 . Points on the legs split each leg into segments whose lengths are shown in the accompanying diagram (which is not drawn to scale). The little triangle at the bottom, the one which has $$\(T^{\prime}\)$$ s base as one of its sides, has an area of 17 . What is the area of $$\(\triangle T\)$$ ?

A.
85
B.
89
C.
101
D.
102
Mathematics
Competition
Math League
Exam No:2022 First Round Grades 8-9 Year:2022 Question No:19

Answer:

A

Knowledge points:

G8-9 - Geometry - Similar Triangles (Proportions & Area Ratios)

Solution:

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