2 years ago

Please help me with this!!!

Mathematics

1 answer:

Nostrana [21]2 years ago

5 0

Answer:

Below in bold

Step-by-step explanation:

I AM ASSUMING that CDEF is a Rhombus.

If it is than triangle DEG is right-angled.

so 2x + 18 + 5x + 2 = 90.

7x = 90 - 20 = 70

x = 7.

So m < CDF = 5x + 2

= 5(10) + 2

= 52 degrees.

m < DCE = 2(10) + 18 = 38 degrees.

The diagonal bisects < DCF so m < ECF = 38 degrees.

So m < DCF = 2 * 38 = 76 degrees.

Opposite angles of a rhombus are equal so m < DEF = 76 degrees.

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