the degree measure of three angles if a triangle are x,y and z If z=(x+y)/2 then find the value of z

Find the values of the angles x,y and z

The sides of a triangle are x,y and z .if x+y=7,y+z=9 and z+x=8. then find the area of the triangle.

A triangle has base 10cm long and the base angles are 50^(@) and 70^(@) .If the perimeter of the triangle is x+y cos(z^(@)) where z in(0,90^(@)) ,then find the value of (x+y+z) .

In the adjoining figure, measures of some angles are given. Using the measures find the measures find the values of x,y,z.

In the adjoining find the measures of angle x, angle y, angle z

Find the measure of the angle between the planes 2x-y+z=2 and x+y+2z=3

If x /(y+z) = y/(z + x) = z /(x + y) , then find the value of each fraction.

In triangle XYZ, the measure of angle X is 30° greater than the measure of angle Y and angle Z is a right angle. Find the measure of ∠Y.

Measure of angle between the planes x+y+2z=3 and 2x-y+ 2z=5 is

If x, y and z are three integers such that x + y = 8, y + z = 13 and z + x =17, then the value of (x^2)/(yz) is :