10
6
80 degrees.
There is no information as to what the underlying shape is! It is not even clear that the lines are all in the same plane!
The answer will depend on what x is and what ab and ad are. And since you have not bothered to provide the information, I cannot provide a more useful answer.
That depends on the value of CD and the perimeter of the quadrilateral out lined in the question
6
Given that AB = 8 units and AD = 10 units, we can use the ratios of corresponding sides in similar triangles to find the measure of DC. Since triangle ADC is similar to triangle ABC, the ratio of DC to AB is equal to the ratio of AD to AC. Thus, DC/8 = 10/AC. Solving for DC, DC = 8 * 10 / AC.
80 degrees.
If abcd is a parallelogram, then the lengths ab and ad are sufficient. The perimeter is 36 units.
For you A+ Cheaters ;D it's 50!
There is no information as to what the underlying shape is! It is not even clear that the lines are all in the same plane!
15 units
9
a(b + d).
It is easiest to draw it using two right angled triangles.Draw a line AB that is 2 units long. From B, draw BC which is perpendicular to AB and 2 units long. Join AC. From C, draw CD which is perpendicular to AC (clockwise if BC is clockwise from AB, or anticlockwise if BC is anticlockwise) and make CD 2 uinits long. Then AD is a line segment which is sqrt(12) units long.
Ab, Ad, Ah, AI (Abbr.), Al (Name), An, As, At, Ay (Shakespearean).
Isosceles trapezoid ABCD has an area of 276 If AD = 13 inches and DE = 12 inches, find AB.