Question

In the triangle ABC is the angle A=52,7 degrees, the angle C is obtuse, the side AB=12,4 cm and the side BC=10,7 cm. Determine the triangels area.

Answer #1

a) In the triangle ABC, angle A is 60 ° and angle B 90 °. The
side AC is 100 cm. How long is the side BC? Determine an exact
value.
b) An equilateral triangle has the height of 11.25 cm. Calculate
its area.

Triangle ABC is a right angle triangle in which
∠B = 90 degree, AB = 5 units , BC = 12 units. CD
and AE are the angle bisectors of ∠C and ∠A
respectively which intersects each other at point I. Find the area
of the triangle DIE.

ABC is a right-angled triangle with right angle at A, and AB
> AC. Let D be the midpoint of the side BC, and let L be the
bisector of the right angle at A. Draw a perpendicular line to BC
at D, which meets the line L at point E. Prove that
(a) AD=DE; and
(b) ∠DAE=1/2(∠C−∠B)
Hint: Draw a line from A perpendicular to BC, which meets BC in
the point F

In an isosceles triangle ABC ,AB=BC,angle B=20 . M and N are on
AB and BC respectively such that angle MCA =60, angle NAC =50.find
angle MNC

SOLVE IN MATLAB
Given a right triangle ABC, calculate the angle of Theta
(degrees) located between AC and AB given values a and b.
Note:
https://en.wikipedia.org/wiki/Right_triangle#/media/File:Rtriangle.svg
Filename: Right_Triangle_01.m
Input: a, b
Output: Theta (degrees)

the interior angles of a triangle measure 120, 40, 20 degrees.
the longest side of the triangle is 10 cm longer than the shortest
side, determine the perimeter of the triangle

Find the slope of each side of the triangle and use the slopes
to find the measures of the interior angles. (Round angle measures
to one decimal place.)
A (-4,6) B- (3,4) C- (1,2)
Find the Slope of AB, AC, BC and Degree of A,B,C

If in triangle ABC and Triangle XYZ we have AB = XY, AC = XZ,
but m<A > m<X, then BC > YZ. Conversely, if BC > YZ
then m<A > m<X.

NON EUCLIDEAN GEOMETRY
Prove the following:
Claim: Let AD the altitude of a triangle
▵ABC. If BC is longer than or equal to AB and AC, then
D is the interior of BC.
What happens if BC is not the longest side? Is D still always in
the interior of BC? When is D in the interior?

In triangle ABC , let the bisectors of angle b meet AC at D and
let the bisect of angle C meet at AB at E. Show that if BD is
congruent to CE then angle B is congruent to angle C.

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