An airplane 40,000 feet above the ground begins descending at a rate of 1,500 feet per minute. Write an equation to model the si
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Answer:
m<DEF = 8y - 6
Step-by-step explanation:
Given that: DEG = , and FEG =
.
The given triangle is an isosceles triangle with sides DE ≅ DF.
But,
m<DEF = DEG + FEG
= +
= 3y + 4 + 5y - 10
= 8y - 6
m<DEF = 8y - 6
Therefore, the measure of < DEF is 8y - 6.