Question

4.
The areas of two similar triangles ABC and
DEF are 100 cm and 81 cmrespectively.
If EF = 5 cm, then find BC.

5.If ADEF - AABC and DE: AB = 2:3
and ar (ADEF) = 44 square units. Then
find ar (AABC).

6. In ALMN, L = 50° and ZN = 60°. If
ALMN - APQR, then find ZQ.

Answer them
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Answer 1

Answer:

4) ăňß:

perimeterof ABC÷PERIMETER OF DEF is equal to EF÷ BC

100÷81=BC÷5

BC=500÷81

BC= 6.17