# Isosceles trapezoid v3

In an isosceles trapezoid ABCD is the size of the angle β = 81°

Determine size of angles α, γ and δ.

Determine size of angles α, γ and δ.

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this verbal math problem are needed these knowledge from mathematics:

## Next similar examples:

- Isosceles trapezium

Trapezoid YSED (YS||ED) is isosceles. The size of the angle at vertex Y is 17 degrees. Calculate the size of the angle at vertex E. - Rectangular trapezoid

How many inner right angles has a rectangular trapezoid? - Trapezium 2

Trapezium has an area of 24 square cms. How many different trapeziums can be formed ? - Obtuse angle

Which obtuse angle is creating clocks at 17:00? - Degrees to radians

Convert magnitude of the angle α = 9°39'15" to radians: - TVs

Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase. - Conference

148 is the total number of employees. The conference was attended by 22 employees. How much is it in percent? - Percents - easy

How many percent is 432 out of 434? - Simplify 2

Simplify expression: 5ab-7+3ba-9 - Apples 2

James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam? - Gloves

I have a box with two hundred pieces of gloves in total, split into ten parcels of twenty pieces, and I sell three parcels. What percent of the total amount I sold? - Unknown number

Identify unknown number which 1/5 is 40 greater than one tenth of that number. - Inequation

Solve the inequation: 5k - (7k - 1)≤ 2/5 . (5-k)-2 - New refrigerator

New refrigerator sells for 1024 USD, Monday will be 25% discount. How much USD will save, and what will be the price? - Class

In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class? - Equation

Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number. - Number

What number is 20 % smaller than the number 198?