# MATHS

posted by .

In triangle ABC, BC is produced to D. If angle ACD = 110 degree and angle ABC = 70 degree. Find angle BAC. Give reason.

• MATHS -

The interior angle ACB= 70°
The rest is easy.

## Similar Questions

1. ### trigo

In a right tringle ,angle ABC has a value of 37 degree while its opposite side is equal to 5,where angle c=90 degree Find A.)Remaining sides of the triangle B.)Angle ABC using any trigonometry Functions
2. ### maths

In triangle ABC angle B > angle C if AM is the bisector of angle BAC and AN perpendicular BC. prove that angle MAN =1/2(angle B - angle C)
3. ### Johan

Given angle 1 = (x + 7)degree, angle 2 = *(2x -3)degree, angle ABC = (x 2nd power) degree, angle D = (5x - 4)degree. Show that angle ABC congruent to angle D I can't seem to solve this?

5. ### help math

In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The linesAD,BE,CF are concurrent at I,the incenter of triangle ABC. If Angle BAC=90, what is the measure (in degrees) …
6. ### math

In triangle ABC, angle B = 3, angle A and angle C = 8 angle A. How many degrees are there in angle B ?
7. ### Maths, Problem solving

In this triangle, angle BAC is 25% of the size of angle ABC. Angle ACB is 90 degrees less than triangle ABC. What is the Size of angle ABC?
8. ### math

ab and ac are tangents to a circle with centre o. if angle bac is equal to 40 degree, find angle abc and angle acb.
9. ### math

ABC is a right angled triangle . AD is bisector of angle BAC. Angle DAC = 20 degree . X = CD.
10. ### math

If lines AB=6cm, AC=10cm, BC=2•4cm, CD=4cm and AD=X cm. Also angle ABC = angle ACD. (a).Prove that triangle ABC is similar to triangle ACD. (b).Determine the area of the quadrilateral ABCD if the area of triangle ACD is 60cm^2

More Similar Questions