Question

What is the mwasure of <E in degrees

Answer 1

Since both sides of the triangle is 5,it is an isosceles triangle,therefore having the property of side angles being equal as well.

Here's how you can write it in equation:

∵DE=EF=5(sides of isos.△)

∴<D=<F=48°(properties of isos.△)

We can then use the angle sum of triangle(180°) to find out the value of <E:

<E=180°-48°-48°
<E=84°

Thus,the measure of <E is 84°

Hope it helps!

Answer 2

The triangle is isosceles. It has two equal sides. Therefore the angles opposite those equal sides are equal. So if one of the base angles = 48, so does the other one. So you have 2 equal angles of 48.

Every triangle in the world has 180 degrees. There are no exceptions to that rule.

We don't know E

There are always 3 angles in a triangle. So far what we have is

E + 48 + 48 = 180 Add the two 48s

E + 96 = 180 Subtract 96 from both sides.

E = 180 - 96

E = 84 <<<<<< Answer