math
posted by Kristle .
The isoceles triangle represents the roof of a birdfeeder. If each base angle is 40°, how many degrees is the angle at the top of the birdfeeder?
Respond to this Question
Similar Questions

Euclidean Geometry
I am in the 10th Grade and my question is: The base of an isosceles triangle is 21cm. long. The altitude to the base is 9cm. long. What is the approx. measure of a base angle of the triangle? 
Trig
From a point 120 feet from the base of a plant building the angle of elevation to the roof line of the building is 38 degrees. The angle of elevation to the top of an antenna is 43 degrees. The antenna is attached to the nearest edge … 
math
triangle ABC is isoceles with segment AB congruent tp segment AC. Angle A is 50. The bisectors of angle B and angle C meet at D. Find the measure of angle BDC 
Math help
I am so lost I have a problem. Two congruet figures. First trapezoid: 1 side b is 10 1 short base prarallel 6 Angle D 86 degrees Angle C 41 degrees Angle B ? 
Geometery
For triangle MNP, find the value of x and the measure of each of the three angles. at the top of the triangle is X degrees and that is angle M at the bottom left of the triangle is (2x1) degrees and that is angle P at the bottom right … 
Math
The measure of angle BCA is: A) 30 degrees B) 36 degrees C) 45 degrees D) 60 degrees It is a iscoles triangle which the number 3x on the top of the triangle angle A and a line extending to D going right from A and Angle B is at the … 
Math
Prove that angle a is equal to angle E if angle D is equal to angle c Science I can't put the picture of the triangle I will try and explain it Two triangles that connect on one angle >< like this but a triangle and the angle … 
Math
From the roof of a building, the angle of elevation of the top of a taller building is 37 degrees. The angle of depression of the base of the building is 28 degrees. The buildings are 21 m a part. Determine the height of the taller … 
math
Plz explain to me how to do this : The angles of an equilateral triangle are congruent. If x represents the measure of one angle of an equilateral triangle which equation represents the sum of the angle measures of the triangle A. … 
math
In an isoceles triangle top vertex is twice the of the sum of the base angle.find all the exterior angles of the triangle?