In English, for a right triangle with angles of 30 degrees, 60 degrees, and 90 degrees, the ratio of the lengths of the sides is fixed. Specifically, if the hypotenuse (the longest side) is denoted as ccc, the side opposite the 30-degree angle (the shorter leg) is denoted as aaa, ...
If one angle of a right triangle is 30º and the shortest side’s measure is 7 m, what is the measure of the remaining two sides? Solution This is a 30-60-90 triangle in which the side lengths are in the ratio of x: x√3:2x. ...
The 30 – 60 – 90 degree triangle is in the shape of half an equilateral triangle, cut straight down the middle along its altitude. It has angles of 30°, 60°, and 90° and sides in the ratio of The following figure shows an example. Get acquainted with this triangle by ...
Answer to: Given a 30 degrees - 60 degrees - 90 degrees triangle, if the hypotenuse measures 22, find the measures of the short leg and the long...
In the30-60-90 triangle, there's a neat trick. The lengths of its sides are connected by simple ratios. So, let's focus on tan 60° and its special ratio. For sine (sin), it's about the opposite side over the hypotenuse, and for tan 60°, it's 1/√3 because the opposite si...
The sides of a triangle are 56 cm, 90 cm and 106 cm. The circumference... 01:59 In angle ABC, AB=AC and D is a point on BC. If BD = 5cm, AB =12 cm and... 02:24 In triangle ABC , the perpendiculars drawn from A, B and C meet the op... 02:58Exams...
If the perimeter of the triangle is 39 inches, what is the length of each side? The three sides of a triangle are n, 4n+2, and 4n-2. If the perimeter of the triangle is 90 inches, what is the length of each side? The lengths of the four sides of a quadrilater...
12.A square has a side length of 4 centimeters. What is its perimeter? A.8 centimeters B.12 centimeters C.16 centimeters D.20 centimeters 答案:C。解析:正方形周长等于边长乘以四,4×4=16,所以答案是C。A选项是边长的两倍;B选项错误计算;D选项无依据。 13.The triangle has sides of lengths 3 ...
The lengths of the corresponding sides of the first triangle are 3 cm, 4 cm and 5 cm. The length of the longest side of the second triangle is 15 cm. What is the length of the shortest side of the second triangle? A. 9 cm B. 6 cm C. 3 cm D. 1.5 cm 答案:A。本题考查相似...
A triangle is a polygon formed by any three non-collinear points on a plane having three sides and corresponding three angles. The sum of all angles in a triangle is equal to 180 degrees. In a triangle, the side opposite to the smallest angle is the shortest and the side...