source : yahoo.com
In ABC, C is a right angle,what is the measure of x?
If you can use a calculator, you can use any inverse trig function to get the exact answer and match it to the choices.
But this is just a multiple choice question.
Just look at the picture!
It’s obviously more than 45 degrees. That’s clear from the way the triangle is drawn, and confirmed since the opposite side is more than the adjacent side. Only one of the answers is > 45, so it must be 64.8.
No need to even calculate the exact value if this is just a multiple choice test. Just eliminate the impossible answers–that’s the quickest way.
Microsoft Word – 2015 Basic Geometry Answers.docx – A Straight angle measures 180o. Congruent angles are angles that have the same measure. ∠ABC ≅ ∠DEF the angles are congruent m∠ABC = m∠ Perpendicular Bisector of a line forms right angles and bisects the line segment. The Distance from a point to a line is the length of the perpendicular…Find the radius of the incircle of $\triangle ABC$. See the following image : The center of the incircle will be the intersection of the angle bisectors shown. And the find the x coordinate of the center by solving these two equationsSolve the right triangle ABC if angle A is 36°, and side c is 10 cm. Solution. Problem 2. To measure the width of a river. Two trees stand opposite one another, at points A and B, on opposite banks of a river.
View question – Triangle $\triangle ABC$ has a right angle at… – (3) ∆ABC is a right triangle. CA = 6 cm and AB = 6 cm. Using Pythagoras theorem, we have. We know, if two lines containing chords of a circle intersect each other outside the circle, then the measure of the angle between them is half the difference in measures of the arcs intercepted by the angle.2. The measure of any angle, when the measure of the three sides of a triangle ABC are known. Classification of Triangles According to anglesIf one angle of a triangle is a right angle (90°), then it is called a Right triangle.In the given triangle ABC angle C is the right angle, side AB = 21 and side AC = 8. Therefore measurement of angle A or x = 67.6° is the answer.
Solving right triangles. Topics in trigonometry. – Combinatorics is the art of counting. How to study for GRE retake and score HIGHER – (2020) How is the GRE Score Calculated -The Definitive Guide (2021) Tests: GRE Prep Club Tests | FREE GRE Practice Tests [Collection] – New Edition (2021) Vocab: GRE Prep Club Official Vocabulary Lists for…In the right triangle ABC below, what is the cosine of angle A? . Solution We first find the hypotenuse BA and use it to find cos(A). BA = √(32 + 42) = 5 cos(A) = adajacent side The measures of angles A, B and C of a triangle are in the ratio 3:4:5. What is the measure, in degrees, of the largest angle?Measuring Angles and Arcs. Why? The thirteen stars of the Betsy Ross flag are arranged equidistant from Its sides contain two radii of the circle. ∠ABC is a central angle of ⊙B. A central angle separates the circle into two arcs with measures related to the measure of the central angle.
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