I found this question in a math olympiad question.BUT STILL DON'T KNOW HOW TO SOLVE

I found this question in a math olympiad question.BUT STILL DON'T KNOW HOW TO SOLVE

Lk = x cosOk + y sinOk - Pk = 0 , k= 1,2,3 are three sides of a triangle. Prove that orthocentre is given by L1 cos( O2 - O3 ) = L2 cos( O3- O1 ) = L3 cos( O1- O2...

45 degrees 30 degrees 60 degrees

The triangle gives the base and the hypotenuse, how do i find the height using a^2 + b^2 + c^2?????

In a triangle, the measure of the greatest angle is square of the measure of the smallest angle, and the third angle is double of the smallest angle. 1) What is the equation of the triangle. 2) Solve...

A Pythagorean Theorem question i had for homework. I understand and can do Pythagorean Theorem but when I draw out this word problem, my hypotenuse is smaller than the leg and...

ABC is an isosceles triangle BC is 20 AB and AC is 30 Angle A is 120° Angle B is 30° Angle C is 30° Please find height of this triangle using both and ONLY pythagorus...

please help me

A person starts walking from home and walks: 4 miles East 7 miles Southeast 6 miles South 1 miles Southwest 3 miles East This person has walked a total of -- miles Find...

Triangle question

whats the answer

If 3 triangles is equal to 5 disks, and if 1 triangle is equal to 2 squares plus 1 disk, how many squares would it take to balance one disk?

About math's

A line through (6,2) forms a triangle with the positive arms of the coordinate axes. If the area of the triangle is 27 units^2, find the equation of the line.

I know the angles add up to 180, but im not sure how to set up the rquation to begin solving it.

The length of each side of a square is 3 in less than of a side of an equilateral triangle. If the perimeters of two figures are the same, what is the measure Of the sides of each figure?

In triangle DEF, angle E is the same as angle D. Angle F is four less than twice angle D

One angle of a triangle measures 76∘ more than the smallest, while a third angle is twice the smallest. Find the measure of each angle.

A tree is supported by a wire anchored in the ground 3 feet from its base. The wire is 1 foot longer than the height that it reaches on the tree.

One side of triangle is 5 more than 2 times the shortest side. The third side is 9 feet more than the shortest side. The perimeter is 50. Find all three sides.