0
Add your answer:
Earn +20 pts
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
Can a right triangle also be a isocleles triangle?
Yes, an isosceles right triangle will have angles 45-45-90 As a side note, the ratio between the hypotenuse and the sides will always be s: s * √2 where "s" is the length of one of the sides of the isosceles right triangle.
Is the ratio of the angles of a triangle equal to the sides ratio?
No.
Ratio of the angles in a triangle?
if the angle of a triangle are in the ratio 7:11:18,find the angle
What is the smallest angle of a triangle with a ratio of 2 to 3 to 4?
It depends on whether the ratio refers to the angles of the triangle or the length of the sides.
Why is the ratio of opposite to hypotenuse?
The ratio can be used to calculate additional information about the sides or angles of a triangle.
A scalene triangle cannot contain a right angle?
False. The basic Pythagorean triangle's sides are in the ratio 3:4:5. The only non-scalene right-angled triangle which comes to mind is the isosceles with two 45o angles. Law: Every right-angled triangle is scalene unless it contains an angle of 45o.
If two angles of one triangle are equal to two angles of another triangle then the triangles are similar because of the?
If the angles are the same and the sides are proportional by ratio then they are said to be similar triangles.
In a right triangle the ratio of the opposite side to the adjacent side?
In a right triangle, two of the angles are acute ones. Referring to one of the acute angles, the ratio of the side opposite it to the side adjacent to it is the tangent of the angle.
Find the area of a triangle that has a perimeter of 21 inches?
I need to know more about the triangle, such as one or 2 of the angles, whether it is isosceles or equilateral, or whether the lengths share a certain ratio. For example, a triangle of sides 8,8 and 5 (perimeter of 21) will surely have a different area as compared to a triangle of sides 7,7 and 7 (perimeter of 21 as well)
What is the smallest angle of the ratio 3 to 7 to 2?
smallest angles of what? a triangle?
Triangle PQR has angles in the ratio of 2 35 . which type of triangle is PQR?
The sum of the angles in a triangle is 180. Since the ratio of the angles is 2:3:5 their measurements are 2x, 3x, and 5x. When you add them together you will get 180. So... 2x+3x+5x=180 10x+180 x=18 Since x=18 the measure of the angles are 2x=36 3x=54 5x=90 Since one of the angles is 90 we know that the triangle is a RIGHT triangle.
The ratio of the lengths of two sides of a right triangle?
Proportional to the sine of the angles opposite them.
