<span>seven and three one thousandths</span>
The measure of BD ≈ 5.36
<u>Step-by-step explanation</u>:
- The side BC = BD+DE+EC.
- The measure of BC = 20 and DE ≈ 9.28
- The angles ∠BD and ∠EC are both equal to 15°
- If the angles are same, then their sides are equal.
Let 'x' be the measure of BD and EC.
BC = x+9.28+x
20 = 9.28 + 2x
2x = 20-9.28
x = 10.72/2
x = 5.36 (approx.)
∴ The measure of BD ≈ 5.36
Answer: (x^3)^2 - 3^2
Step-by-step explanation:
You could use the isosceles triangle theorems. if two sides of a triangle are congruent, then then angles opposite those sides are congruent. so if the two sides of the triangle are congruent (which they should be if it’s an isosceles triangle) then the isosceles triangle theorem proves that the base angles are congruent
