Given: δdfe is isosceles with base fe; fb ≅ ec. prove: δdfb ≅ δdec complete the missing parts of the paragraph proof. we know that triangle dfe is isosceles with base fe and that segment fb is congruent to segment ec because . segment df is congruent to segment by the definition of isosceles triangle. since these segments are congruent, the base angles, angles , are congruent by the isosceles triangle theorem. therefore, triangles are congruent by sas

The answer is:

1. It is given

2. DE

3. DFE and DEF

4. DFB and DEC

Hope it helps!

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)