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An isosceles triangle has a base of 22 cm and a vertex angle of 36 degrees. Find its perimeter?
If the vertex angle is 36 degrees then the two base angles must be 72 degrees each. An isosceles triangle can be thought of as being two conjoined right angled triangles. So by halving the base we can work out the hypotenuse with the trigonometry ratio for the cosine. cosine = adj/hyp and when rearranged hyp = adj/cosine hyp = 11/cosine 72 degrees = 35.59674775 Perimeter = 35.59674775+35.59674775+22 = 93.1934955 cm
The 3 angels of a triangle are in the ratio of 2 to 3 to 4 what is the measure of the greatest angle?
The angles are: 40, 60 and 80 degrees
How can proving two triangles congruent can help prove parts of the triangle congruent?
When you prove a triangle is congruent to another, it can help you prove parts of the triangle congruent by checking the ratio between all sides and angles. Thank you for asking
What is the ratio of squares to triangles in a triangle?
There are 2 triangles in a square so the ratio to square and triangle is 2 to 1
Two triangle are similar and the ratio of the corresponding sides is 4 3 What is the ratio of their areas?
area of triangle 1 would be 16 and the other triangle is 9 as the ratio of areas of triangles is the square of their similar sides
